cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How important is the dynamical information in determination of LEO orbits
Creators: name: Shabanloui, Akbar
name: Kusche, Jürgen
name: Ilk, Karl Heinz
Publisher: name: Leibniz Universität Hannover
Year: 2010
Subjects: subject: Importance of dynamical information in precise orbit determination
subject: Low Earth Orbiters (LEO)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::629,1 | Luft- und Raumfahrttechnik

description: The interest in a precise orbit determination of Low Earth Orbiters (LEOs) using GNSS observations to recover of the Earth's gravity field has been grown rapidly. With the advent of precise orbit and clock products at centimeter level accuracy provided by the IGS analysis centers and the geometrical connections between GNSS satellites and LEOs, the orbit of LEOs can be estimated based on only a single GNSS receiver onboard LEOs. The determined LEO orbit is based on only geometrical configuration between GNSS and LEO. This procedure is known as Geometrical Precise Orbit Determination (GPOD). The ephemerides of point-wise LEO positions can be derived by this method at every observation epochs. Kinematical Precise Orbit Determination (KPOD) is another estimation procedure, which is based on the geometrical information too. Based on a new proposed method, the kinematical orbit is represented by a sufficient number of approximation parameters, including boundary values of the LEO arc. This kind of orbit representation not only allows to determine arbitrary functional (e.g. velocity and acceleration) of the satellite arc's, but it is also possible to use dynamical observations for the determination of orbit parameters. It should be mentioned that in the geometrical and kinematical orbit determination procedures, no dynamical (force) information is used at all. Because of the close relation of the estimated kinematical parameters with the force function model, the orbit determination can be designed as a pure kinematical orbit determination on the one hand, and a pure dynamical orbit determination on the other hand. In other words, this formulation of the orbit determination allows a smooth transition from a kinematical to dynamical orbit determination. At the one end, the orbit parameters are determined without any force (dynamical) information at all, and the other extreme end, all orbit representing parameters are functions of the force model. If only weak dynamical restrictions are introduced to the estimation procedure, then a reduced-kinematical orbit results. In this poster, the new proposed orbit determination concept will be introduced and the effect of the dynamical information in the orbit determination procedures will be presented for the GOCE mission as a case study based on the simulated data. The various possibilities with the corresponding results of GOCE based on GNSS observations will be presented.
Non-Contact Breathing Rate Detection Using Optical Flow
Creators: name: Maxwell, Robyn
name: Hanley, Timothy
name: Golden, Dara
name: Andonie, Adara
name: Lemley, Joseph
name: Parsi, Ashkan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Breathing rate is a vital health metric that is an invaluable indicator of the overall health of a person. In recent years, the non-contact measurement of health signals such as breathing rate has been a huge area of development, with a wide range of applications from telemedicine to driver monitoring systems. This paper presents an investigation into a method of non-contact breathing rate detection using a motion detection algorithm, optical flow. Optical flow is used to successfully measure breathing rate by tracking the motion of specific points on the body. In this study, the success of optical flow when using different sets of points is evaluated. Testing shows that both chest and facial movement can be used to determine breathing rate but to different degrees of success. The chest generates very accurate signals, with an RMSE of 0.63 on the tested videos. Facial points can also generate reliable signals when there is minimal head movement but are much more vulnerable to noise caused by head/body movements. These findings highlight the potential of optical flow as a non-invasive method for breathing rate detection and emphasize the importance of selecting appropriate points to optimize accuracy.
description: In Proceedings of Irish Machine Vision and Image Processing Conference 2023 (IMVIP2023), Galway, Ireland, August 2023
How reliable is the mass variation in the Siberian permafrost region as observed by GRACE mission?
Creators: name: Shabanloui, Akbar
name: Müller, Jürgen
Publisher: name: Leibniz Universität Hannover
Year: 2015
Subjects: subject: reliability of mass variations
subject: Siberian permafrost region
subject: Satellite mission GRACE
subject: Satellitengestütze Gravimetrie
subject: GRACE
subject: sibirisches Permafrostgebiet
subject: Zuverlässigkeit der Massenvariationen aus Satellitenmission GRACE
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Permafrost generally and in Siberia (Russia) especially plays a key role for global hydrological mass transport, climate change and the eco-system of the Earth. In this study, surface and sub-surface mass variations in the Siberian permafrost region based on the gravitational approach (i.e. from GRACE mission) are estimated, and investigated to what extent the mass transport estimates are reliable and realistic. On the other hand, hydrological mass variations in this region are determined based on the geometrical approach using satellite (radar/laser) altimetry re-tracking data (e.g. Jason-2, ICESat) and satellite imagery (e.g. LandSat). In addition, hydrological surface mass variations are extracted from global hydrological water cycle models based on various in-situ hydrological observations, e.g. precipitation, evapotranspiration and run-off data. In this study, we quantify and asses the signal errors and its contributions to the integral mass variations in Siberia including error bars and determine to what extent GRACE results can provide mass variations which are caused by permafrost changes.
On d+id density wave and superconducting orderings in hole-doped cuprates
Creators: name: Goswami, Partha
name: Gahlot, Ajay Pratap Singh
name: Singh, Pankaj
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Chiral d-density wave (CDDW) order, at the anti-ferromagnetic wave vector (pi,pi), is assumed to represent the pseudo-gap (PG) state of a hole-doped cuprate superconductor. The pairing interaction required for the PG phase corresponds to a repulsive interaction of Coulombic origin. The d-wave superconductivity (DSC), driven by an appropriate assumed attractive interaction, is discussed within the mean-field framework together with the CDDW ordering. The single-particle excitation spectrum in the CDDW and DSC state is characterized by the Bogolubov quasi-particle bands-a characteristic feature of SC state. The coupled gap equations are solved self-consistently together with the equation to determine the chemical potential. With the pinning of the van Hove-singularities close to the chemical potential, one is able to calculate the thermodynamic and transport properties of the under-doped cuprates in a consistent manner. The electronic specific heat displays non-Fermi liquid feature in the CDDW state. The CDDW and DSC are found to represent two competing orders as the former brings about a depletion of the spectral weight (and Raman response function density) available for pairing in the anti-nodal region of momentum space.This is not in agreement with a preformed pairing scenario and justifies the different structures we have assumed for the pseudo-gap and the superconducting gap. Furthermore, these gaps in the excitation spectrum do not merge into a single quadrature gap. It is also shown that the depletion of the spectral weight below Tc at energies larger than the gap amplitude occurs. This is an indication of the strong-coupling superconductivity in cuprates. The calculation of the ratio of the quasi-particle thermal conductivity and temperature in the superconductiong phase is found to be constant in the limit of near-zero quasi-particle scattering rate.
description: 17 pages, 8 figures. arXiv admin note: substantial text overlap with arXiv:1111.0928. This article is withdrawn due to a preexisting version online
Solutions of a slowly rotating Kerr flat-horizon black hole in dynamical Chern-Simons modified gravity
Creators: name: Nashed, G. G. L.
name: Bamba, Kazuharu
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Solutions pertaining to a Kerr black hole with a flat horizon undergoing gradual rotation are explored in the context of gravitational theories modified by dynamical Chern-Simons terms with cylindrical metrics, which approach asymptotically the anti de Sitter spacetime. It is shown that the cross-term of a metric component is unaffected by the perturbations of the Chern-Simons scalar independently of whether the dynamical Chern-Simons field equation is uncharged or charged with an electric field. From this result, it is ensured that the Chern-Simons scalar field can affect the spaces of the metric that approach asymptotically the flat spacetime only.
description: 10 pages
Heat pump systems with vertical ground heat exchangers and uncovered solar thermal collectors
Creators: name: Bertram, Erik
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Temperature potential
subject: solar ground regeneration
subject: dimensioning method for uncovered collector
subject: Temperaturpotential
subject: solare Erdreichregeneration
subject: Auslegungsverfahren für unabgedeckte Kollektoren
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: [no abstract]
LocaliseBot: Multi-view 3D object localisation with differentiable rendering for robot grasping
Creators: name: Vijayaraghavan, Sujal
name: Alqasemi, Redwan
name: Dubey, Rajiv
name: Sarkar, Sudeep
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Robot grasp typically follows five stages: object detection, object localisation, object pose estimation, grasp pose estimation, and grasp planning. We focus on object pose estimation. Our approach relies on three pieces of information: multiple views of the object, the camera's extrinsic parameters at those viewpoints, and 3D CAD models of objects. The first step involves a standard deep learning backbone (FCN ResNet) to estimate the object label, semantic segmentation, and a coarse estimate of the object pose with respect to the camera. Our novelty is using a refinement module that starts from the coarse pose estimate and refines it by optimisation through differentiable rendering. This is a purely vision-based approach that avoids the need for other information such as point cloud or depth images. We evaluate our object pose estimation approach on the ShapeNet dataset and show improvements over the state of the art. We also show that the estimated object pose results in 99.65% grasp accuracy with the ground truth grasp candidates on the Object Clutter Indoor Dataset (OCID) Grasp dataset, as computed using standard practice.
High-resolution headlamps: Innovative functionalities and the potential of using laser diodes as light sources
Creators: name: Li, Yang
name: Knöchelmann, Marvin
name: Lachmayer, Roland
Publisher: name: Leibniz Universität Hannover
Year: 2019
Subjects: subject: High-resolution headlamps
subject: Lighting based communication
subject: Projection technologies
subject: Laser diodes
subject: Hochauflösende Scheinwerfer
subject: Lichtbasierte Kommunikation
subject: Projectionstechnik
subject: Laserdioden
subject: Dewey Decimal Classification::600 | Technik

description: High-resolution headlamp systems are increasingly attracting attentions from OEMs and researchers, while plenty of innovative lighting functionalities such as precisely glare avoidance of high beam, fully adaptive driving beam and on-road projection bring a huge potential for improving the driving safety and comfort. Besides, as a respond to the trend of intelligent transportation and autonomous driving in the future, lighting based communication between drivers and other road participants is also a possible supplementary functionality of such headlamp systems. The growth of such headlamps raises specific illumination demands regarding to the functionalities consequently. To achieve these high resolution dynamic light functions and to fulfill the relevant requirements, several additive or subtractive projection technologies are considered by OEMs and researchers. Due to the different applied circumstances and intentions, the uses of these technologies in headlamp systems are different from those in video projectors. Headlamp systems demand a high optical efficiency with highly compact constructions, which raises requirements to the design and arrangement on both mechatronic and optical systems. As a result, particular schemes for different projection technologies have been developing and brought up in recent years. Moreover, the pursuit of efficiency and compaction suggests the appliance of laser diodes as light sources. Laser diodes have intense optical output power with relatively small emission areas and narrow divergent angles, leading to the use of small optical components for realizing compact modules. Besides, other peculiar properties of laser diodes such as linear polarizations and likely fiber-coupled can be utilized for specific designs as well. In this article, the development of headlamp systems in Germany with correspondent innovative functionalities and requirements are discussed, prototypes composed of different technologies are illustrated, and furthermore, the advantages of using laser diodes for these technologies are also presented.
Additional file 1 of Effectiveness of high cardiorespiratory fitness in cardiometabolic protection in prediabetic rats
Creators: name: Thonusin, Chanisa
name: Pantiya, Patcharapong
name: Sumneang, Natticha
name: Chunchai, Titikorn
name: Nawara, Wichwara
name: Arunsak, Busarin
name: Siri-Angkul, Natthaphat
name: Sriwichaiin, Sirawit
name: Chattipakorn, Siriporn C.
name: Chattipakorn, Nipon
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 60506 Virology

description: Additional file 1. Additional tables and figures.
Additional file 2 of Subtypes in pancreatic ductal adenocarcinoma based on niche factor dependency show distinct drug treatment responses
Creators: name: Shinkawa, Tomohiko
name: Ohuchida, Kenoki
name: Mochida, Yuki
name: Sakihama, Kukiko
name: Iwamoto, Chika
name: Abe, Toshiya
name: Ideno, Noboru
name: Mizuuchi, Yusuke
name: Shindo, Koji
name: Ikenaga, Naoki
name: Moriyama, Taiki
name: Nakata, Kohei
name: Oda, Yoshinao
name: Nakamura, Masafumi
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 2: Table S1. Relationship betweentumor differentiation and clinicopathologic factors.
High-resolution headlamps: An innovative concept for the next-generation
Creators: name: Li, Yang
name: Knöchelmann, Marvin
name: Lachmayer, Roland
Publisher: name: The 8th International Forum on Automotive Lighting (IFAL 2020) : Institut für Produktentwicklung und Gerätebau, Leibniz Universität Hannover, Deutschland
Year: 2020
Subjects: subject: High-resolution headlamps
subject: on-road projection
subject: lighting-based communication
subject: chromatic projection
subject: Hochauflösende Scheinwerfer
subject: on-road Projektion
subject: lichtbasierte Kommunikation
subject: chromatische Projektion
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Headlamp systems have been undergoing rapid developments in recent years to enhance traffic safety and comfort, with the trend of having a higher resolution. This higher resolution brings forth functionalities such as precisely glare avoidance and on-road lighting projection. Among them, the on-road projection is a function besides of illumination, which provides the opportunity for drivers to acquire the information directly from the road, and more importantly, to communicate with other road participants. This lighting-based communication is especially significant in the coming era of higher autonomous driving levels since it can display the intentions of a vehicle immediately to other road users. In order to make full use of the advantage of the on-road projection, the chromatic lighting projection is put forward because it enables this lighting information not only visible in the night, but also during the daytime. Current projection technologies have either an undesirable output luminous flux regarding the capability of the light source or a complex structure to generate white light and chromatic projections at the same time. In this paper, an innovative concept using laser diodes as light sources with LCoS devices for a high-resolution vehicle headlamp system is presented. Specific design schemes, according to this concept, are also discussed.
Additional file 1 of Subtypes in pancreatic ductal adenocarcinoma based on niche factor dependency show distinct drug treatment responses
Creators: name: Shinkawa, Tomohiko
name: Ohuchida, Kenoki
name: Mochida, Yuki
name: Sakihama, Kukiko
name: Iwamoto, Chika
name: Abe, Toshiya
name: Ideno, Noboru
name: Mizuuchi, Yusuke
name: Shindo, Koji
name: Ikenaga, Naoki
name: Moriyama, Taiki
name: Nakata, Kohei
name: Oda, Yoshinao
name: Nakamura, Masafumi
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 1: Fig. S1. A lower degree of tumor differentiation correlates with poor prognosis in patients with pancreatic ductal adenocarcinoma (PDAC). Kaplan–Meier overall survival analysis based on histopathological tumor differentiation in patients with PDAC (n = 242). Fig. S2. The serum response of PDOs differed according to the tumor grade and Moffitt‘s classification. Fig. S3. Spearman’s correlation analysis between the niche factor dependency and the expression levels of PDAC stem cell markers, including CD44, CD24, and CD133. Fig. S4. Supplementation of niche factors to Grade1 PDOs following indirect co-culture with CAFs allowed organoid formations. Fig. S5. The relationship between Moffitt’s classification (“Classical”and“Basal-like”) and the proliferation rate of PDOs in the absence of the indicated factors (**P<0.01; ***P<0.001). Fig. S6. qRT-PCR analysis of the mRNA expressions of RSPO3 in CAFs co-cultured indirectly or directly with PDO585. indirect, indirect co-culture; direct, direct co-culture. Fig. S7. Transcriptomic signatures induced by niche factors.
Health Monitoring for Aircraft Systems using Decision Trees and Genetic Evolution
Creators: name: Gerdes, Mike
Publisher: name: Luleå, Sweden : Luleå University of Technology, Graphic Production
Year: 2019
Subjects: subject: Condition Monitoring
subject: Remaining Useful Life Prediction
subject: Fuzzy Decision Tree Evaluation
subject: System Monitoring
subject: Aircraft Health Monitoring
subject: Feature Extraction
subject: Feature Selection
subject: Data Driven
subject: Health Prognostic
subject: Knowledge Based System
subject: Supervised Learning
subject: Data-Driven Predictive Health Monitoring
subject: Health Indicators
subject: Flugzeugsysteme
subject: Wartung
subject: Luftfahrt
subject: Luftfahrzeug
subject: Instandhaltung
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::629,1 | Luft- und Raumfahrttechnik
subject: Aeronautics
subject: Airplanes
subject: Decision trees
subject: Genetic algorithms
subject: Expert systems
subject: Machine learning
subject: Big data
subject: Pattern recognition systems

description: Reducing unscheduled maintenance is important for aircraft operators. There are significant costs if flights must be delayed or cancelled, for example, if spares are not available and have to be shipped across the world. This thesis describes three methods of aircraft health condition monitoring and prediction; one for system monitoring, one for forecasting and one combining the two other methods for a complete monitoring and prediction process. Together, the three methods allow organizations to forecast possible failures. The first two use decision trees for decision-making and genetic optimization to improve the performance of the decision trees and to reduce the need for human interaction. Decision trees have several advantages: the generated code is quickly and easily processed, it can be altered by human experts without much work, it is readable by humans, and it requires few resources for learning and evaluation. The readability and the ability to modify the results are especially important; special knowledge can be gained and errors produced by the automated code generation can be removed. A large number of data sets is needed for meaningful predictions. This thesis uses two data sources: first, data from existing aircraft sensors, and second, sound and vibration data from additionally installed sensors. It draws on methods from the field of big data and machine learning to analyse and prepare the data sets for the prediction process.
title: Der Blick auf die Dinge: Zur Rolle von Ausstellungen und Digital Humanities für das IMAREAL. Ein Gespräch mti Elisabeth Vavra
Creators: name: Nicka, Isabella
Publisher: name: Institut für Realienkunde des Mittelalters und der frühen Neuzeit
Year: 2019
Subjects: Realienkunde
Mittelalter
Wissenschaftsgeschichte
Kunstgeschichtes>

description: Elisabeth Vavra leitete von 2003 bis 2014 das Institut für Realienkunde des Mittelalters und der frühen Neuzeit in Krems. Als wissenschaftliche Mitarbeiterin war die Kunsthistorikerin aber
	bereits seit 1976 an diesem Institut tätig. Im Interview erläutert sie die Bedeutung der Mittelalter-Ausstellungen in Krems/Stein in den späten 1950er und 1960er Jahren für die Gründung des
	IMAREAL und spricht über die Möglichkeiten, die die digitalen Geisteswissenschaften für die Forschungen zur materiellen Kultur in der Frühzeit des Instituts geboten haben.
	From 2003 to 2014, Elisabeth Vavra was director of the Institute for Medieval and Early Modern Material Culture in Krems. The art historian, however, had already been working as a research assistant
	at this institute since 1976. In an interview, she explains the importance of medieval exhibitions in Krems/Stein in the late 1950s and 1960s for the founding of IMAREAL. She also talks about how digital
	humanities fostered new research approaches in the early days of the institute.
Direct observation of nanometer-scale Joule and Peltier effects in phase change memory devices
Creators: name: Grosse, Kyle L.
name: Xiong, Feng
name: Hong, Sungduk
name: King, William P.
name: Pop, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We measure power dissipation in phase change memory (PCM) devices by scanning Joule ex-pansion microscopy (SJEM) with ~50 nm spatial and 0.2 K temperature resolution. The temperature rise in the Ge2Sb2Te5 (GST) is dominated by Joule heating, but at the GST-TiW contacts it is a combination of Peltier and current crowding effects. Comparison of SJEM and electrical characterization with simulations of the PCM devices uncovers a thermopower ~350 uV/K for 25 nm thick films of face centered-cubic crystallized GST, and contact resistance ~2.0 x 10^-8 Ohm-m2. Knowledge of such nanoscale Joule, Peltier, and current crowding effects is essential for energy-efficient design of future PCM technology.
description: includes supplement
Automated Identification of Sexual Orientation and Gender Identity Discriminatory Texts from Issue Comments
Creators: name: Sultana, Sayma
name: Sarker, Jaydeb
name: Israt, Farzana
name: Paul, Rajshakhar
name: Bosu, Amiangshu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In an industry dominated by straight men, many developers representing other gender identities and sexual orientations often encounter hateful or discriminatory messages. Such communications pose barriers to participation for women and LGBTQ+ persons. Due to sheer volume, manual inspection of all communications for discriminatory communication is infeasible for a large-scale Free Open-Source Software (FLOSS) community. To address this challenge, this study aims to develop an automated mechanism to identify Sexual orientation and Gender identity Discriminatory (SGID) texts from software developers' communications. On this goal, we trained and evaluated SGID4SE ( Sexual orientation and Gender Identity Discriminatory text identification for (4) Software Engineering texts) as a supervised learning-based SGID detection tool. SGID4SE incorporates six preprocessing steps and ten state-of-the-art algorithms. SGID4SE implements six different strategies to improve the performance of the minority class. We empirically evaluated each strategy and identified an optimum configuration for each algorithm. In our ten-fold cross-validation-based evaluations, a BERT-based model boosts the best performance with 85.9% precision, 80.0% recall, and 82.9% F1-Score for the SGID class. This model achieves 95.7% accuracy and 80.4% Matthews Correlation Coefficient. Our dataset and tool establish a foundation for further research in this direction.
Cooperative Bidirectional Mixed-Traffic Overtaking
Creators: name: Tariq, Faizan M.
name: Suriyarachchi, Nilesh
name: Mavridis, Christos
name: Baras, John S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Safe overtaking, especially in a bidirectional mixed-traffic setting, remains a key challenge for Connected Autonomous Vehicles (CAVs). The presence of human-driven vehicles (HDVs), behavior unpredictability, and blind spots resulting from sensor occlusion make this a challenging control problem. To overcome these difficulties, we propose a cooperative communication-based approach that utilizes the information shared between CAVs to reduce the effects of sensor occlusion while benefiting from the local velocity prediction based on past tracking data. Our control framework aims to perform overtaking maneuvers with the objective of maximizing velocity while prioritizing safety and passenger comfort. Our method is also capable of reactively adjusting its plan to dynamic changes in the environment. The performance of the proposed approach is verified using realistic traffic simulations.
description: Published in: 2022 IEEE 25th International Conference on Intelligent Transportation Systems (ITSC)
High precision spectroscopy on beams of atoms and dimers
Creators: name: Falke, Stephan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2007
Subjects: subject: Doppler-free laser spectroscopy
subject: hyperfine structure
subject: radiative lifetime
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Heterotic supergravity on manifolds with Killing spinors
Creators: name: Nölle, Christoph
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Heterotic supergravity
subject: real Killing spinors
subject: Yang-Mills instantons
subject: Heterotische Supergravitation
subject: reelle Killing Spinoren
subject: Yang-Mills Instantonen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
On a Multiple-Access in a Vector Disjunctive Channel
Creators: name: Frolov, Alexey
name: Zyablov, Victor
name: Sidorenko, Vladimir
name: Fischer, Robert
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We address the problem of increasing the sum rate in a multiple-access system from [1] for small number of users. We suggest an improved signal-code construction in which in case of a small number of users we give more resources to them. For the resulting multiple-access system a lower bound on the relative sum rate is derived. It is shown to be very close to the maximal value of relative sum rate in [1] even for small number of users. The bound is obtained for the case of decoding by exhaustive search. We also suggest reduced-complexity decoding and compare the maximal number of users in this case and in case of decoding by exhaustive search.
description: 5 pages, 4 figures, submitted to IEEE ISIT 2013
Electrostatic considerations affecting the calculated HOMO-LUMO gap in protein molecules
Creators: name: Lever, Greg
name: Cole, Daniel J
name: Hine, Nicholas D M
name: Haynes, Peter D
name: Payne, Mike C
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: A detailed study of energy differences between the highest occupied and lowest unoccupied molecular orbitals (HOMO-LUMO gaps) in protein systems and water clusters is presented. Recent work questioning the applicability of Kohn-Sham density-functional theory to proteins and large water clusters (E. Rudberg, J. Phys.: Condens. Mat. 2012, 24, 072202) has demonstrated vanishing HOMO-LUMO gaps for these systems, which is generally attributed to the treatment of exchange in the functional used. The present work shows that the vanishing gap is, in fact, an electrostatic artefact of the method used to prepare the system. Practical solutions for ensuring the gap is maintained when the system size is increased are demonstrated. This work has important implications for the use of large-scale density-functional theory in biomolecular systems, particularly in the simulation of photoemission, optical absorption and electronic transport, all of which depend critically on differences between energies of molecular orbitals.
description: 13 pages, 4 figures
Fault-Tolerant Renormalization Group Decoder for Abelian Topological Codes
Creators: name: Duclos-Cianci, Guillaume
name: Poulin, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a three-dimensional generalization of a renormalization group decoding algorithm for topological codes with Abelian anyonic excitations that we previously introduced for two dimensions. This 3D implementation extends our previous 2D algorithm by incorporating a failure probability of the syndrome measurements, i.e., it enables fault-tolerant decoding. We report a fault-tolerant storage threshold of 1.9(4)% for Kitaev's toric code subject to a 3D bit-flip channel (i.e. including imperfect syndrome measurements). This number is to be compared with the 2.9% value obtained via perfect matching. The 3D generalization inherits many properties of the 2D algorithm, including a complexity linear in the space-time volume of the memory, which can be parallelized to logarithmic time.
description: 11 pages, 11 figures
High capacity membrane design for size exclusion based virus removal
Creators: name: Villain, Louis
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Virus filtration
subject: membrane modification
subject: hydrophobic interactions
subject: immunoglobulin
subject: Virenfiltration
subject: Membranmodifizierung
subject: hydrophobe Wechselwirkungen
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Additional file 1 of Impact of diabetes group visits on patient clinical and self-reported outcomes in community health centers
Creators: name: Baig, Arshiya A.
name: Staab, Erin M.
name: Benitez, Amanda
name: Hermans, Sarah P.
name: Ham, Sandra A.
name: Wan, Wen
name: Campbell, Amanda
name: Schaefer, Cynthia T.
name: Quinn, Michael T.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Recruitment Flowsheet. Table S2. Diabetes Processes of Care at Baseline (N=123). Table S3. Adjusted Odds Ratios for Completing Processes of Care by Group at 12 Month Follow-up Compared to Baseline (N=123).
Superconductivity in Cu$_{x}$IrTe$_{2}$ induced by interlayer hybridization
Creators: name: Kamitani, M.
name: Bahramy, M. S.
name: Arita, R.
name: Seki, S.
name: Arima, T.
name: Tokura, Y.
name: Ishiwata, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The change in the electronic structure of layered Cu$_{x}$IrTe$_{2}$ has been characterized by transport and spectroscopic measurements, combined with first-principles calculations. The Cu-intercalation suppresses the monoclinic distortion, giving rise to the stabilization of the trigonal phase with superconductivity. Thermopower and Hall resistivity measurements suggest the multiband nature with hole and electron carriers for this system, which is masked by the predominance of the hole carriers enhanced by the interlayer hybridization in the trigonal phase. Rather than the instability of Ir $d$ band, a subtle balance between the interlayer and intralayer Te-Te hybridizations is proposed as a main factor dominating the structural transition and the superconductivity.
description: 5 pages, 4 figures
Decoherence reduction via continuous dynamical decoupling: Analytical study of the role of the noise spectrum
Creators: name: Llorente, J. M. Gomez
name: Gomez-Ojeda, I.
name: Plata, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the robust character against non-static noise of clock transitions implemented via a method of continuous dynamical decoupling (CDD) in a hyperfine Zeeman multiplet in ^{87}\textrm{Rb}. The emergence of features specific to the quadratic corrections to the linear Zeeman effect is evaluated. Our analytical approach, which combines methods of stochastic analysis with time-dependent perturbation theory, allows tracing the decoherence process for generic noise sources. Working first with a basic CDD scheme, it is shown that the amplitude and frequency of the (driving) field of control can be appropriately chosen to force the non-static random input to have a (time-dependent) perturbative character. Moreover, in the dressed-state picture, the effect of noise is described in terms of an operative random variable whose properties, dependent on the driving field, can be analytically characterized. In this framework, the relevance of the spectral density of the fluctuations to the performance of the CDD technique is precisely assessed. In particular, the range of noise correlation times where the method of decoherence reduction is still efficient is identified. The results obtained in the basic CDD framework are extrapolated to concatenated schemes. The generality of our approach allows its applicability beyond the specific atomic system considered.
Synthetic Neutrino Imaging of a Microquasar
Creators: name: Smponias, Theodoros
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Microquasar binary stellar systems emit electromagnetic radiation and high-energy particles over a broad energy spectrum. However, they are so far away that it is hard to observe their details. A simulation offers the link between relatively scarce observational data and the rich theoretical background. In this work, high-energy particle emission from simulated twin microquasar jets is calculated in a unified manner. From the cascade of emission within an element of jet matter to the dynamic and radiative whole jet model, the series of physical processes involved are integrated together. A programme suite assembled around model data produces synthetic images and spectra directly comparable to potential observations by contemporary arrays. The model is capable of describing a multitude of system geometries, incorporating increasing levels of realism depending on need and available computational resources. As an application, the modelling process is applied to a typical microquasar, which is synthetically observed from different angles using various imaging geometries. Furthermore, the resulting intensities are comparable to the sensitivity of existing detectors. The combined background emission from a potential distribution of microquasars is also modelled.
description: Published in 2021. arXiv admin note: text overlap with arXiv:2311.07694
Direct numerical simulation of compressible interfacial multiphase flows using a mass-momentum-energy consistent volume-of-fluid method
Creators: name: Zhang, Bo
name: Boyd, Bradley
name: Ling, Yue
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Compressible interfacial multiphase flows (CIMF) are essential to different applications, such as liquid fuel injection in supersonic propulsion systems. Since high-level details in CIMF are often difficult to measure in experiments, numerical simulation is an important alternative to shed light on the unclear physics. A direct numerical simulation (DNS) of CIMF will need to rigorously resolve the shock waves, the interfaces, and the interaction between the two. A novel numerical method has been developed and implemented in the present study. The geometric volume-of-fluid (VOF) method is employed to resolve the sharp interfaces between the two phases. The advection of the density, momentum, and energy is carried out consistently with VOF advection. To suppress spurious oscillations near shocks, numerical diffusion is introduced based on the Kurganov-Tadmor method in the region away from the interface. The contribution of pressure is incorporated using the projection method and the pressure is obtained by solving the Poisson-Helmholtz equation, which allows the present method to handle flows with all Mach numbers. The present method is tested by a sequence of CIMF problems. The simulation results are validated against theories, experiments, and other simulations, and excellent agreement has been achieved. In particular, the linear single-mode Richtmyer-Meshkov instabilities with finite Weber and Reynolds numbers are simulated. The simulation results agree very well with the linear stability theory, which affirms the capability of the present method in capturing the viscous and capillary effects on shock-interface interaction.
High power solid state single frequency MOPA for gravitational wave detection
Creators: name: Basu, Chandrajit
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Single frequency
subject: solid state
subject: MOPA
subject: Nd:YAG
subject: intensity noise
subject: aberration
subject: TEM00 mode content
subject: Zemike coefficients
subject: pupil size scaling
subject: Einfrequent
subject: Festkörper
subject: Intensitätsrauschen
subject: TEM00-Moden Inhalt
subject: Zemike-Koeffizienten
subject: Pupillengröße
subject: Skalierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Ludwig Thiersch (München 1825 - 1909). Ölstudien und Zeichnungen eines Spätnazareners
Creators: name: Puvogel, Renate
Publisher: name: Aachener Kunstblätter
Year: 2017

description: -
description: Aachener Kunstblätter, Bd. 49 (1980-1981): Aachener Kunstblätter
High resolution rotation sensor based on cold atom interferometry
Creators: name: Wendrich, Thijs Jan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Atom interferometry
subject: laser cooling
subject: inertial sensors
subject: Atominterferometrie
subject: Laserkühlung
subject: Inertialsensoren
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Improving NSGA-II with an Adaptive Mutation Operator
Creators: name: Carvalho, Arthur
name: Araujo, Aluizio F. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: The performance of a Multiobjective Evolutionary Algorithm (MOEA) is crucially dependent on the parameter setting of the operators. The most desired control of such parameters presents the characteristic of adaptiveness, i.e., the capacity of changing the value of the parameter, in distinct stages of the evolutionary process, using feedbacks from the search for determining the direction and/or magnitude of changing. Given the great popularity of the algorithm NSGA-II, the objective of this research is to create adaptive controls for each parameter existing in this MOEA. With these controls, we expect to improve even more the performance of the algorithm. In this work, we propose an adaptive mutation operator that has an adaptive control which uses information about the diversity of candidate solutions for controlling the magnitude of the mutation. A number of experiments considering different problems suggest that this mutation operator improves the ability of the NSGA-II for reaching the Pareto optimal Front and for getting a better diversity among the final solutions.
Raman Spectroscopy Analysis of G-Peak Shift in Suspended Graphene Membranes: Temperature-Dependent Acquisitions
Creators: name: Sokolov, Aleksei
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 500 Naturwissenschaften und Mathematik::530 Physik::536 Wärme
subject: raman
subject: ballistic
subject: heat conduction
subject: hyperbolic equations
subject: lattices
subject: waves
subject: ballistisch
subject: Wärmeleitung
subject: hyperbolische Gleichungen
subject: Gitterstrukturen
subject: Wellen
subject: graphene

description: This file contains raw data of Raman spectroscopy acquisition of the G-peak shift in suspended graphene membranes with respect to temperature variations. The first column corresponds to low probe laser intensity, the second column to high probe laser intensity when the laser functions as a heater. The third column represents the difference between the high and low probe laser intensities. This data is used in Table 5.4 in the doctoral thesis On the wave nature of thermal transport in low-dimensional lattices: from the atomistic to the continuum perspective by Sokolov, Aleksei https://doi.org/10.14279/depositonce-17199
High-order harmonic generation with ultra-short pulses from filamentation
Creators: name: Steingrube, Daniel Sebastian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Ultra-short pulses
subject: filamentation
subject: high-order harmonic generation
subject: attosecond pulse generation
subject: Ultrakurze Pulse
subject: Erzeugung hoher harmonischer Strahlung
subject: Attosekundenpulserzeugung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
High-power CW green lasers for optical metrology and their joint benefit in particle physics experiments
Creators: name: Meier, Tobias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Second harmonic generation
subject: optical metrology
subject: light shining through a wall
subject: Frequenzverdopplung
subject: optische Messtechnik
subject: Licht durch die Wand
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Homological stability for Hurwitz spaces
Creators: name: Tietz, Jakob Frederik
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Homological stability
subject: branched coverings
subject: braid groups
subject: Homologische Stabilität
subject: verzweigte Überlagerungen
subject: Zopfgruppen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: [no abstract]
On the Fisher information matrix for multivariate elliptically contoured distributions
Creators: name: Besson, Olivier
name: Abramovich, Yuri I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The Slepian-Bangs formula provides a very convenient way to compute the Fisher information matrix (FIM) for Gaussian distributed data. The aim of this letter is to extend it to a larger family of distributions, namely elliptically contoured (EC) distributions. More precisely, we derive a closed-form expression of the FIM in this case. This new expression involves the usual term of the Gaussian FIM plus some corrective factors that depend only on the expectations of some functions of the so-called modular variate. Hence, for most distributions in the EC family, derivation of the FIM from its Gaussian counterpart involves slight additional derivations. We show that the new formula reduces to the Slepian-Bangs formula in the Gaussian case and we provide an illustrative example with Student distributions on how it can be used.
description: submitted to IEEE Signal Processing Letters