cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Body-rock or lift-off in flow
Creators: name: Smith, Frank T.
name: Wilson, Phillip L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Conditions are investigated under which a body lying at rest or rocking on a solid horizontal surface can be removed from the surface by hydrodynamic forces or instead continues rocking. The investigation is motivated by recent observations on Martian dust movement as well as other small- and large-scale applications. The nonlinear theory of fluid-body interaction here has unsteady motion of an inviscid fluid interacting with a moving thin body. Various shapes of body are addressed together with a range of initial conditions. The relevant parameter space is found to be subtle as evolution and shape play substantial roles coupled with scaled mass and gravity effects. Lift-off of the body from the surface generally cannot occur without fluid flow but it can occur either immediately or within a finite time once the fluid flow starts up: parameters for this are found and comparisons are made with Martian observations.
description: 28 pages, 9 figures
Graphitization process of SiC(0001) studied by electron energy loss spectroscopy
Creators: name: Langer, T.
name: Pfnür, Herbert
name: Schumacher, H.W.
name: Tegenkamp, Christoph
Publisher: name: College Park, MD : American Institute of Physics
Year: 2009
Subjects: subject: Buffer layers
subject: Dissociation
subject: Electron diffraction
subject: Electron emission
subject: Electron energy levels
subject: Electron scattering
subject: Electrons
subject: Energy dissipation
subject: Graphite
subject: Graphitization
subject: Nuclear instrumentation
subject: Silicon carbide
subject: X ray diffraction analysis
subject: X ray photoelectron spectroscopy
subject: Blue shifts
subject: Electron energy loss
subject: Electron energy-loss spectroscopies
subject: Electronic transitions
subject: Epitaxially grown
subject: Graphene growths
subject: Graphene layers
subject: Graphitization process
subject: In planes
subject: Low energy electrons
subject: Plasmon loss
subject: Spot profile analysis
subject: Surface normals
subject: X-ray photoelectron spectroscopies
subject: Electron energy loss spectroscopy
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Electron energy loss spectroscopy (EELS) is used to study the transition from the buffer layer to the first graphene layers during graphitization of SiC(0001). Graphene growth is controlled and correlated with spot profile analysis in low energy electron diffraction and x-ray photoelectron spectroscopy. In the EELS data both electronic transitions and plasmon losses are sensitive to the interface. The collective in-plane excitations show a characteristic blueshift upon graphitization, while single electron transitions with dipole moments along the surface normal are suppressed for the buffer layer. These dependencies can be used to control the number of epitaxially grown graphene layers. © 2009 American Institute of Physics.
Mud motor failure analysis using surface sensor data features and trends
Creators: name: Lawal, Tesleem O.
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Motor failure
Mud motor
Surface data
Drilling data analysis

description: Mud motor failure is a significant contributor to non-productive time in North American land drilling operations. Currently, there is limited work on mud motor failure analysis using surface drilling data. The objective of this work was to apply data analytics methodologies on historical drilling datasets to identify features and trends in surface data that contribute most to indicating impending mud motor failure. The methodology involved investigating a large dataset of mud motor runs for certain on-bottom and off-bottom drilling events that are generally known to be leading causes of motor failure. Spikes in differential pressure, pick up practices, drill-off time, etc., were all investigated. Additionally, the impact of temperature on mud motor failure was studied. A combination of the investigated features was analyzed using statistical measures and supervised machine learning algorithms to determine the leading contributors to motor failure. The dataset consisted of 32 motor runs drilled in the lateral section of wells from early-to-mid 2019. These motor runs represented a mix of both failure and non-failure cases. The motor stalls were categorized as either low, medium, or high impact depending on the severity of the differential pressure spike. It was observed that high impact motor stalls and the rate of stalling correlated strongly with eventual failure. Likewise, prolonged exposure to high bottom-hole temperature (exceeding the motor temperature limit) increased the risk of motor damage, most likely through thermal expansion of the stator elastomer. The drill-off time was also found to have some influence on motor failure for the investigated cases. Using these features, statistical significance tests and supervised machine learning models were trained on the dataset to determine the features that contribute most to motor failure. This work shows the feasibility of performing mud motor failure analysis using readily available surface data. It is expected to inform drilling engineers on data analysis methodologies for eﬀicient failure analysis and help them plan future wells more eﬀiciently.
Some Results On Spectrum And Energy Of Graphs With Loops
Creators: name: Akbari, Saieed
name: Menderj, Hussah Al
name: Ang, Miin Huey
name: Lim, Johnny
name: Ng, Zhen Chuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50, 05C90

description: Let $G_S$ be a graph with loops obtained from a graph $G$ of order $n$ and loops at $S \subseteq V(G)$. In this paper, we establish a neccesary and sufficient condition on the bipartititeness of a connected graph $G$ and the spectrum Spec($G_S$) and Spec($G_{V(G)\backslash S}$). We also prove that for every $S \subseteq V(G)$, $E(G_S) \geq E(G)$ when $G$ is bipartite. Moreover, we provide an identification of the spectrum of complete graphs $K_n$ and complete bipartite graphs $K_{m,n}$ with loops. We characterize any graphs with loops of order n whose eigenvalues are all positive or non-negative, and also any graphs with a few distinct eigenvalues. Finally, we provide some bounds related to $G_S$.
description: 16 pages, published version
Effect of random quenched impurities on the critical behavior of a four-state Potts system in two dimensions: An experimental study
Creators: name: Schwenger, L.
name: Budde, K.
name: Voges, C.
name: Pfnür, Herbert
Publisher: name: College Park, MD : American Physical Society
Year: 1994
Subjects: subject: phase transition
subject: superstructures
subject: adsorbed layers
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Critical behavior of the order-disorder phase transition of the (2×2)-2H structure on Ni(111) was investigated for the pure system and in the presence of 0.3%-3% of a monolayer of preadsorbed atomic oxygen. Depending on oxygen concentration, the values of the critical exponents β, γ, and ν change from those of the four-state Potts universality class to Ising-like exponents close to Tc, a behavior qualitatively in agreement with the effect of random quenched impurities. © 1994 The American Physical Society.
Phase diagram and critical behavior of the adsorption system O/Ru(001): Comparison with lattice-gas models
Creators: name: Piercy, P.
name: De'Bell, K.
name: Pfnür, Herbert
Publisher: name: College Park, MD : American Physical Society
Year: 1992
Subjects: subject: chemisorption
subject: oxygen
subject: Monte Carlo simulation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The chemisorption of oxygen on the Ru(001) surface shows ordered p(2×2) and p(1×2) phases at coverages of 1/4 and 1/2 monolayer, respectively, that are observed to undergo apparently continuous transitions to a disordered state upon heating. We present here details of the experimental determination of the O/Ru phase diagram, lattice-gas models that describe it, and some (but not all) of the observed critical behavior. Monte Carlo simulations based on a phenomenological Hamiltonian describing pairwise interactions between adatoms are used to calculate the phase boundaries and (effective) critical exponents. Restricting adsorption of oxygen atoms to the triangular lattice of the hcp-type hollow sites as seen experimentally, repulsive first- and second-nearest-neighbor interactions are sufficient to describe the observed phase diagram at coverages Θ<0.4 and the four-state Pott’s-class critical exponents at Θ=1/4, but fail to describe the higher coverage region. This model is then generalized to allow oxygen adsorption on both hcp- and fcc-type hollow sites, with a difference in binding energy of 0.52 eV between the two types of sites. At higher coverages, repulsive interactions within the adsorbate lead to a spillover of up to 12% of adatoms onto the sites of higher energy, markedly reducing the transition temperature at Θ=1/2, in agreement with the experimental results on O/Ru(001). However, effective critical exponents computed for this model are near four-state Pott’s values at Θ=1/2, in contrast to the experimental data and suggestive of crossover behavior involving (2×2)-honeycomb and p(2×1) ground states.
RNA EDITING SIGNATURES IN RNA-SEQ DATA - INSIGHTS INTO BIOLOGICAL FUNCTIONS AND DISEASE ASSOCIATIONS
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: RNA editing
post-transcriptional modifications
RNA-Seq data analysis
systematic review
gene expression
protein diversity
high-throughput sequencing technologies
next-generation sequencing
biological functions
disease associations

description: The exploration of RNA editing within RNA-Seq data necessitates a systematic review of expert-authored books, forming the foundation of our understanding. Employing specific keywords, our methodical approach ensured extraction from authoritative sources. The review uncovered the dynamic landscape of RNA editing, tracing its evolution from early discoveries to contemporary technological advancements. It highlighted the interplay between scientific innovation and high-throughput sequencing technologies, particularly the shift from Sanger to next-generation sequencing. These technologies are instrumental in capturing genome-wide RNA editing signatures. The systematic review's insights serve as a compass for our ongoing exploration, providing methodologies, historical context, and technological advances. RNA editing emerges not as an academic abstraction but a practical tool unraveling biological intricacies and disease associations. The results underscore RNA editing's pivotal role in gene regulation, protein diversity, and disease mechanisms, reshaping our understanding of genetics and offering potential therapeutic insights.
 
 
Die Erforschung der RNA-Bearbeitung innerhalb von RNA-Seq-Daten erfordert eine systematische Überprüfung von von Experten verfassten Büchern, die die Grundlage unseres Verständnisses bilden. Durch die Verwendung spezifischer Schlüsselwörter gewährleistete unser methodischer Ansatz die Extraktion aus maßgeblichen Quellen. Die Rezension deckte die dynamische Landschaft der RNA-Bearbeitung auf und zeichnete ihre Entwicklung von frühen Entdeckungen bis hin zu zeitgenössischen technologischen Fortschritten nach. Dabei wurde das Zusammenspiel zwischen wissenschaftlicher Innovation und Hochdurchsatz-Sequenzierungstechnologien hervorgehoben, insbesondere der Übergang von Sanger zur Sequenzierung der nächsten Generation. Diese Technologien sind maßgeblich an der Erfassung genomweiter RNA-Editing-Signaturen beteiligt. Die Erkenntnisse der systematischen Überprüfung dienen als Kompass für unsere fortlaufende Forschung und liefern Methoden, historischen Kontext und technologische Fortschritte. Die RNA-Bearbeitung stellt keine akademische Abstraktion dar, sondern ein praktisches Werkzeug zur Aufklärung biologischer Feinheiten und Krankheitszusammenhänge. Die Ergebnisse unterstreichen die zentrale Rolle der RNA-Bearbeitung bei der Genregulation, Proteinvielfalt und Krankheitsmechanismen, verändern unser Verständnis der Genetik und bieten potenzielle therapeutische Erkenntnisse.
Dynamics of the activated dissociative chemisorption of N2 on W(110): A molecular beam study
Creators: name: Pfnür, Herbert
name: Rettner, C.T.
name: Lee, J.
name: Madix, R.J.
name: Auerbach, D.J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 1986
Subjects: subject: chemisorption
subject: angular distribution
subject: nitrogen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Molecular beam techniques have been used to study the dissociative chemisorption of nitrogen on W(110). Chemisorption probabilities have been measured as a function of incidence angle θi and kinetic energy Ei surface coverage and temperature. In addition, angular scattering distributions have been measured for a range of conditions and LEED has been used to examine surface structure. The initial (zero coverage limit) sticking probability is found to depend strongly on the incidence energy, scaling approximately with Ei, rather than with the velocity component normal to the surface. This probability is ≤3×10−3 for Ei≤30 kJ mol−1, and rises by more than a factor of 100 by ∼100 kJ mol−1, where it levels off at ∼0.35. It is argued that this behavior arises due to a strong chemical interaction prior to the barrier to dissociation. Angular scattering distributions revealed predominately quasispecular scattering with evidence as well for a diffuse component at low energies. The sticking probability falls steadily with increasing surface coverage and a saturation coverage of ∼0.25 atomic ML is observed for Ei∼10 kJ mol−1. At higher incidence kinetic energies, this saturation coverage increases to ∼0.5 ML at 200 kJ mol−1. LEED structures are also reported, corresponding to coverages of 0.25, 0.3, 0.5, and 0.52 ML. The 0.25 and 0.5 ML structures are identified as p(2×2) and c(4×2), respectively, for which structure models are proposed.
How African American/Black school-aged children make food-choices
Creators: name: Jones-Lemmons, Fallon Alexis
name: 0000-0002-0283-1719
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Food-choices
Obesity
Children
Photo-elicitation
African American

description: The prevalence of overweight children in the United States has almost doubled from 17% to 32% in the past two decades. Children in the United States are overweight, and approximately 16-18% are considered obese. The children with the highest obesity rate come from specified racial/ethnic groups, Hispanic and African American/Black. This dissertation seeks to understand how African American school-aged children make independent food-choices. This qualitative study uses Charmaz’s rendition of Grounded Theory as the methodology. Data were collected from twenty-two children using the photo-elicitation technique developed by Wang and Buriss and semi-structured interviews. The study was able to show how children could be the experts of their own experience, contributing alongside the researcher instead of being the research subject only. The Children’s Food-Choice Model emerged from the data, with the tenets being antecedents, influential factors, and decision making through reciprocity. Food-choices occurred as the result of three major themes: (1) antecedents, which included health conditions, autonomy, and opportunities associated with food; (2) influential factors which included preferences, time, and place; and (3) decision making through reciprocity which occurred through parent-child reciprocity exchanges. The model is constantly evolving with the child. As the antecedent foundation develops, the child adapts to greater food associated roles and responsibilities. As the rules change due to greater trust established, the child is able to better handle complex decision making without the assistance of their parent.
On the role of vibrational energy in the activated dissociative chemisorption of methane on tungsten and rhodium
Creators: name: Rettner, C.T.
name: Pfnür, Herbert
name: Auerbach, D.J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 1986
Subjects: subject: chemisorption
subject: vibrational energy dependence
subject: methane
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The vibrational energy dependence of the dissociative chemisorption probability of CH4 on W(110) is investigated with the use of a seeded supersonic molecular beam. By variation of the beam source temperature and seed gas mixture the degree of vibrational excitation of the incident CH4 molecules can be varied while the incident kinetic energy is held constant. The results are consistent with a model in which all vibrational modes are equally effective and vibrational energy and translational energy are approximately equivalent in promoting this highly activated process. Previous unsuccessful attempts to promote CH4 chemisorption on rhodium via vibrational excitation are consistent with our findings; we are also able to account for previous observations of enhancement of dissociative chemisorption in heated effusive beam experiments.
Experimental realization of quantum algorithm for solving linear systems of equations
Creators: name: Pan, Jian
name: Cao, Yudong
name: Yao, Xiwei
name: Li, Zhaokai
name: Ju, Chenyong
name: Peng, Xinhua
name: Kais, Sabre
name: Du, Jiangfeng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computers have the potential of solving certain problems exponentially faster than classical computers. Recently, Harrow, Hassidim and Lloyd proposed a quantum algorithm for solving linear systems of equations: given an $N\times{N}$ matrix $A$ and a vector $\vec b$, find the vector $\vec x$ that satisfies $A\vec x = \vec b$. It has been shown that using the algorithm one could obtain the solution encoded in a quantum state $|x$ using $O(\log{N})$ quantum operations, while classical algorithms require at least O(N) steps. If one is not interested in the solution $\vec{x}$ itself but certain statistical feature of the solution ${x}|M|x$ ($M$ is some quantum mechanical operator), the quantum algorithm will be able to achieve exponential speedup over the best classical algorithm as $N$ grows. Here we report a proof-of-concept experimental demonstration of the quantum algorithm using a 4-qubit nuclear magnetic resonance (NMR) quantum information processor. For all the three sets of experiments with different choices of $\vec b$, we obtain the solutions with over 96% fidelity. This experiment is a first implementation of the algorithm. Because solving linear systems is a common problem in nearly all fields of science and engineering, we will also discuss the implication of our results on the potential of using quantum computers for solving practical linear systems.
description: 13 pages,8 figures
Cloud Computing for Citizen Science
Creators: name: Olson, Michael James
Publisher: name: California Institute of Technology
Year: 2012
Subjects: paas
cloud
event detection
saas
citizen science
Computer Science
iaas
earthquake detection

description: My thesis describes the design and implementation of systems that empower individuals to help their communities respond to critical situations and to participate in research that helps them understand and improve their environments. People want to help their communities respond to threats such as earthquakes, wildfires, mudslides and hurricanes, and they want to participate in research that helps them understand and improve their environment. “Citizen Science” projects that facilitate this interaction include projects that monitor climate change, water quality and animal habitats. My thesis explores the design and analysis of community-based sense and response systems that enable individuals to participate in critical community activities and scientific research that monitors their environments.
Design and Development of a Heart Rate Measuring Device using Fingertip
Creators: name: Hashem, M. M. A.
name: Shams, Rushdi
name: Kader, Md. Abdul
name: Sayed, Md. Abu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: In this paper, we presented the design and development of a new integrated device for measuring heart rate using fingertip to improve estimating the heart rate. As heart related diseases are increasing day by day, the need for an accurate and affordable heart rate measuring device or heart monitor is essential to ensure quality of health. However, most heart rate measuring tools and environments are expensive and do not follow ergonomics. Our proposed Heart Rate Measuring (HRM) device is economical and user friendly and uses optical technology to detect the flow of blood through index finger. Three phases are used to detect pulses on the fingertip that include pulse detection, signal extraction, and pulse amplification. Qualitative and quantitative performance evaluation of the device on real signals shows accuracy in heart rate estimation, even under intense of physical activity. We compared the performance of HRM device with Electrocardiogram reports and manual pulse measurement of heartbeat of 90 human subjects of different ages. The results showed that the error rate of the device is negligible.
title: The Oppressive Grind: Understanding and Addressing Everyday Sexisms in Australian Universities 2021-2024
Creators: name: Blaise, Mindy
name: Gray, Emily
name: Ullman, Jacqueline
Publisher: name: Western Sydney University
Year: 2023

description: The Oppressive Grind is satirical newspaper bringing together headlines, letters to the editor, opinion pieces, crosswords and imagery all drawn from empirical data (quant and qual) collected from the ARC DP project "Understanding and Addressing Everyday Sexisms in Australian Universities".
Neutrino spin oscillations in matter under the influence of gravitational and electromagnetic fields
Creators: name: Dvornikov, Maxim
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the new quasi-classical equation for the description of the spin evolution of a neutrino propagating in a curved space-time and interacting with a background matter and an external electromagnetic field. This equation is used to analyze neutrino spin oscillations in these external backgrounds. We obtain the effective Hamiltonian and the transition probability for oscillations of neutrinos when they move in the vicinity of a rotating black hole, surrounded by an accretion disk, and interact with an external magnetic field. The appearance of new resonances in neutrino spin oscillations in this system is considered. The approximate treatment of spin oscillations of radially propagating ultra high energy neutrinos is developed. We also discuss the applications of our results to the description of neutrino spin oscillations in realistic astrophysical media.
description: 19 pages, 4 esp figures, JCAP LaTeX style; version to be published in JCAP
Kinetic energy and angular dependence of activated dissociative adsorption of N2 on W(110): Observed insensitivity to incidence angle
Creators: name: Auerbach, C.J.
name: Pfnür, Herbert
name: Rettner, C.T.
name: Lee, J.
name: Madix, R.J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 1984
Subjects: subject: angular dependence
subject: nitrogen
subject: adsorption brobability
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Measurements are reported of the dependence of the dissociative adsorption probability on the incidence angle of nitrogen beam. The supersonic molecular beam of N2 is incident on a W(110) surface mounted in a UHV chamber. The measurements were controlled by a feedback system interfaced to a computer.
Quantum interference in an electron-hole graphene ring system
Creators: name: Smirnov, D.
name: Schmidt, H.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 2013
Subjects: subject: Aharonov-Bohm effect
subject: graphene
subject: quantum interference phenomena
subject: semiconductor materials
subject: Quantum interference devices
subject: Quantum interference phenomena
subject: Semiconductor materials
subject: Aharonov-bohm effects
subject: Aharonov-bohm oscillations
subject: Electron hole
subject: Electrons and holes
subject: Gate voltages
subject: Graphene rings
subject: Quantum interference
subject: Graphene
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Quantum interference is observed in a graphene ring system via the Aharonov Bohm effect. As graphene is a gapless semiconductor, this geometry allows to study the unique situation of quantum interference between electrons and holes in addition to the unipolar quantum interference. The period and amplitude of the observed Aharonov-Bohm oscillations are independent of the sign of the applied gate voltage showing the equivalence between unipolar and dipolar interference. © 2013 AIP Publishing LLC.
Knudsen layer formation in laser induced thermal desorption
Creators: name: Ikeda, Akihiko
name: Matsumoto, Masuaki
name: Ogura, Shohei
name: Okano, Tatsuo
name: Fukutani, Katsuyuki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Laser induced thermal desorption of Xe atoms into vacuum from a metal surface following the nano-second pulsed laser heating was investigated by the time-of-flight (TOF) measurement. The desorption flow was studied at a wide range of desorption flux by varying the initially prepared Xe coverage Θ (1 ML = 4.5*10^18 atoms/m^2). At Θ = 0.3 ML, the TOF of Xe was well represented by a Maxwell-Boltzmann velocity distribution, which is in good agreement with thermal desorption followed by collision-free flow. At Θ > 0.3 ML, the peak positions of the TOF spectra were shifted towards the smaller values and became constant at large Θ, which were well fitted with a shifted Maxwell-Boltzmann velocity distribution with a temperature T_D and a stream velocity u. With T_D fixed at 165 K, u was found to increase from 80 to 125 m/ s with increasing Θ from 1.2 to 4 ML. At Θ > 4 ML, the value of u become constant at 125 m/ s. The converging feature of u was found to be consistent with analytical predictions and simulated results based on the Knudsen layer formation theory. We found that the Knudsen layer formation in laser desorption is completed at Knudsen number Kn <0.39.
description: 7 pages, 4 figures, J. Chem. Phys. in press
Resonant tunneling diodes made up of stacked self-assembled Ge/Si islands
Creators: name: Schmidt, O.G.
name: Denker, U.
name: Eberl, K.
name: Kienzle, O.
name: Ernst, F.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 2000
Subjects: subject: RTD
subject: heavy-heavy hole transition
subject: heavy-lihht hole transition
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Multiple layers of self-assembled Ge/Si islands are used for resonant tunneling diodes (RTDs). The extremely closely stacked Ge nanostructures form vertical channels with energetically deep thermalization layers and high Si double barriers. Two resonances are found in the RTD current-voltage curve, which are attributed to the heavy-heavy hole (hh) and heavy-light hole (lh) transition. The lh resonance shows negative differential resistance up to 50 K. With increasing magnetic field, the lh resonance slightly shifts to higher voltages. © 2000 American Institute of Physics.
Moderate deviations for a nonparametric estimator of sample coverage
Creators: name: Gao, Fuqing
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In this paper, we consider moderate deviations for Good's coverage estimator. The moderate deviation principle and the self-normalized moderate deviation principle for Good's coverage estimator are established. The results are also applied to the hypothesis testing problem and the confidence interval for the coverage.
description: Published in at http://dx.doi.org/10.1214/13-AOS1091 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: The Effects of Four Gymnastics Skills on Vertebral Column Hyperextension in Young Female Gymnasts
Creators: name: Burke, Tonia McClure
Publisher: name: Old Dominion University Libraries
Year: 2001

description: There is very limited information available on the effects of gymnastics skills on spinal hyperextension. Eleven young female gymnasts between the ages of 11 and 15 participated in this study. The subjects height and weight were taken then they were screened for musculoskeletal injuries, normal abdominal and back extensor strength, normal hip flexor and hamstring flexibility, spondylolisthesis, and scoliosis. Hyperextension of the spinal column was measured during normal standing, hyperextending the spine in standing, and during four different gymnastics skills, using the Peak5 motion analysis system. Each subject performed five acceptable trials of four different gymnastics skill including a back walkover, back handspring, front walkover, and front handspring. Maximum, minimum, and mean descriptive statistics were completed on the different variables to determine the amount of hyperextension at hand contact, peak hyperextension, and hands-off during the four skills. A one way analysis of variance with repeated measures was performed on these individual dependent measures to determine main effects among the four gymnastics skills. If the ANOVA for main effects was significant, a post-hoc Tukey analysis determined differences between group means.
Flux-quantum-modulated Kondo conductance in a multielectron quantum dot
Creators: name: Fühner, C.
name: Keyser, U.F.
name: Haug, Rolf J.
name: Reuter, D.
name: Wieck, A.D.
Publisher: name: College Park, MD : American Physical Society
Year: 2002
Subjects: subject: article
subject: conductance
subject: electric potential
subject: electrode
subject: electron
subject: elementary particle
subject: energy
subject: low temperature
subject: magnetic field
subject: periodicity
subject: quantum mechanics
subject: quantum theory
subject: semiconductor
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We investigate a lateral semiconductor quantum dot with a large number of electrons in the limit of strong coupling to the leads. A Kondo effect is observed and can be tuned in a perpendicular magnetic field. This Kondo effect does not exhibit Zeeman splitting. It shows a modulation with the periodicity of one flux quantum per dot area at low temperatures. The modulation leads to a strikingly regular stripe pattern for a wide range in magnetic field and number of electrons.
title: Hawaii Longline Fishery Seabird Bycatch for the Entire Fishing Grounds, above 23°N, and 23°N–30°S
titleType: Other
Creators: name: McCracken, Marti L.
Publisher: name: United States. National Marine Fisheries Service, Pacific Islands Fisheries Science Center (U.S.)
Year: 2019

description: DR-19-030
High frequency conductivity in the quantum Hall regime
Creators: name: Hohls, Frank
name: Zeitler, U.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Physical Society
Year: 2001
Subjects: subject: Electric conductivity
subject: Electrons
subject: Hall effect
subject: Mathematical models
subject: Phase transitions
subject: Thermal effects
subject: Quantum hall effect
subject: Scaling
subject: Quantum theory
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The frequency dependence of the longitudinal conductivity σxx for frequencies up to 6 GHz was measured. It was possible to access both the real part and the imaginary part of σxx which allowed to perform a new test of scaling behavior. Using the theory of Polyakov and Shklovskii on variable-range hopping in the QHE, the localization length was deduced.
On the concepts of vacuum and mass and the search for higgs
Creators: name: Okun, L. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Some recollections on the recent history of the concepts of vacuum and mass and the search for higgs. According to the widely spread terminology the Higgs field permeates vacuum and serves as the origin of masses of all fundamental particles including the Higgs Boson -- the higgs.
description: 8 pages
THE RELATIONSHIP BETWEEN SPATIAL MISMATCH AND JOB ACCESSIBILITY AMONG LOW-INCOME WORKERS IN PENANG ISLAND, MALAYSIA
Creators: name: HAFIZAH ROSLI
name: NARIMAH SAMAT
name: MOHD. AZMEER ABU BAKAR
Publisher: name: Zenodo
Year: 2024
Subjects: Spatial Mismatch, Job Accessibility, Transport Mode Choice.

description: Abstract

Low-income households residing in areas distant from job opportunities face limited job accessibility due to the presence of spatial mismatch. The objective of the study was to ascertain the presence of spatial mismatch and evaluate the extent of job accessibility among the respondents chosen among low-income workers who are working and living in Penang Island, Malaysia. A quantitative survey was conducted among 306 respondents from low-income households who were registered in the eKasih welfare programme in Penang in 2016. The respondents were selected using stratified random sampling based on a specific ratio. The study aims to analyze the spatial distribution of respondents' home and working locations in order to evaluate their job accessibility from their residential areas, using the geocode data obtained from the survey. Subsequently, an investigation was conducted to assess the job accessibility factors, including the distance between respondents' residence and workplace, the mode of transportation chosen, and the duration of the commute. The research findings suggest that there is a spatial mismatch among respondents’ residential areas in suburban areas. However, respondents in both urban and suburban areas rely largely on their individual vehicles. A significant portion of the population depends on motorcycles as their primary mode of mobility. Hence, it is imperative for housing and transportation policy to incorporate a strategic approach to alleviate spatial mismatch, as well as improving public transportation services to attract the low-income workers to choose public transport to access jobs.
title: Hans Schönberger: Kastell Künzing-Quintana. Die Grabungen von 1958 — 1966. Limes forschungen 13, Berlin 1975
Creators: name: Schnurbein, Siegmar Von
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Hans Schönberger: Kastell Künzing-Quintana. Die Grabungen von 1958 — 1966. Limes forschungen 13, 1975. Gebrüder Mann, Berlin. 118 Seiten, 26 Abbildungen, 8 Tafeln, 10 Beilagen.
Cell death and life in cancer: mathematical modeling of cell fate decisions
Creators: name: Zinovyev, Andrei
name: Fourquet, Simon
name: Tournier, Laurent
name: Calzone, Laurence
name: Barillot, Emmanuel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Tumor development is characterized by a compromised balance between cell life and death decision mechanisms, which are tighly regulated in normal cells. Understanding this process provides insights for developing new treatments for fighting with cancer. We present a study of a mathematical model describing cellular choice between survival and two alternative cell death modalities: apoptosis and necrosis. The model is implemented in discrete modeling formalism and allows to predict probabilities of having a particular cellular phenotype in response to engagement of cell death receptors. Using an original parameter sensitivity analysis developed for discrete dynamic systems, we determine the critical parameters affecting cellular fate decision variables that appear to be critical in the cellular fate decision and discuss how they are exploited by existing cancer therapies.
title: ОСОБЕННОСТИ НАЗНАЧЕНИЯ И ИСПОЛНЕНИЯ НАКАЗАНИЯ В ВИДЕ ОГРАНИЧЕНИЯ СВОБОДЫ
Creators: name: Маврина, Валерия
name: Жидков, Андрей
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье рассмотрены отдельные проблемы, существующие при назначении и исполнении уголовного наказания в виде ограничения свободы. На примере правоприменительной практики рассматриваются особенности применения правовых норм, регламентирующих данный вид уголовного наказания, а также вносятся предложения по совершенствованию законодательной базы для эффективного применения наказания и достижения целей, на которые направлено уголовное наказание.
EvAC3D: From Event-based Apparent Contours to 3D Models via Continuous Visual Hulls
Creators: name: Wang, Ziyun
name: Chaney, Kenneth
name: Daniilidis, Kostas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: 3D reconstruction from multiple views is a successful computer vision field with multiple deployments in applications. State of the art is based on traditional RGB frames that enable optimization of photo-consistency cross views. In this paper, we study the problem of 3D reconstruction from event-cameras, motivated by the advantages of event-based cameras in terms of low power and latency as well as by the biological evidence that eyes in nature capture the same data and still perceive well 3D shape. The foundation of our hypothesis that 3D reconstruction is feasible using events lies in the information contained in the occluding contours and in the continuous scene acquisition with events. We propose Apparent Contour Events (ACE), a novel event-based representation that defines the geometry of the apparent contour of an object. We represent ACE by a spatially and temporally continuous implicit function defined in the event x-y-t space. Furthermore, we design a novel continuous Voxel Carving algorithm enabled by the high temporal resolution of the Apparent Contour Events. To evaluate the performance of the method, we collect MOEC-3D, a 3D event dataset of a set of common real-world objects. We demonstrate the ability of EvAC3D to reconstruct high-fidelity mesh surfaces from real event sequences while allowing the refinement of the 3D reconstruction for each individual event.
description: 16 pages, 8 figures, European Conference on Computer Vision (ECCV) 2022
Corpus-based Web Document Summarization using Statistical and Linguistic Approach
Creators: name: Shams, Rushdi
name: Hashem, M. M. A.
name: Hossain, Afrina
name: Akter, Suraiya Rumana
name: Gope, Monika
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Single document summarization generates summary by extracting the representative sentences from the document. In this paper, we presented a novel technique for summarization of domain-specific text from a single web document that uses statistical and linguistic analysis on the text in a reference corpus and the web document. The proposed summarizer uses the combinational function of Sentence Weight (SW) and Subject Weight (SuW) to determine the rank of a sentence, where SW is the function of number of terms (t_n) and number of words (w_n) in a sentence, and term frequency (t_f) in the corpus and SuW is the function of t_n and w_n in a subject, and t_f in the corpus. 30 percent of the ranked sentences are considered to be the summary of the web document. We generated three web document summaries using our technique and compared each of them with the summaries developed manually from 16 different human subjects. Results showed that 68 percent of the summaries produced by our approach satisfy the manual summaries.
A new compressive video sensing framework for mobile broadcast
Creators: name: Li, Chengbo
name: Jiang, Hong
name: Wilford, Paul
name: Zhang, Yin
name: Scheutzow, Mike
Publisher: name: arXiv
Year: 2013
Subjects: subject: Multimedia (cs.MM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A new video coding method based on compressive sampling is proposed. In this method, a video is coded using compressive measurements on video cubes. Video reconstruction is performed by minimization of total variation (TV) of the pixelwise DCT coefficients along the temporal direction. A new reconstruction algorithm is developed from TVAL3, an efficient TV minimization algorithm based on the alternating minimization and augmented Lagrangian methods. Video coding with this method is inherently scalable, and has applications in mobile broadcast.
description: 9 pages, 12 figures
Surface functionalization under water using picosecond and femtosecond laser pulses - first observations and novel effects
Creators: name: Koch, Jürgen
name: Taschner, Sebastian
name: Suttmann, Oliver
name: Kaierle, Stefan
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2018
Subjects: subject: Material processing in liquids
subject: Spike structures
subject: Surface functionalization
subject: Ultrashort pulse laser
subject: Femtosecond lasers
subject: Stochastic systems
subject: Ultrafast lasers
subject: Ultrashort pulses
subject: Flexible tool
subject: Functionalizations
subject: Material processing
subject: Picoseconds
subject: Stochastic structure
subject: Surface Functionalization
subject: Under water
subject: Workpiece
subject: Laser materials processing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Functionalization by changing the topography of workpiece surfaces is interesting for many applications. Lasers - especially ultrashort pulse lasers - are flexible tools for this kind of tasks. Besides deterministic structures they allow for processing surfaces in a way that stochastic structures appear. Ripple and spike structures can be fabricated in air. In liquids, however, there are only a few investigations and many open questions. The idea of this paper is to check how water in contact to the workpiece surface affects femtosecond laser surface processing and what kind of structures appear. Results obtained with a picosecond laser are presented for comparison.
Sizing electric storage system for atypical grid usage of industrial consumers
Creators: name: Zimmermann, Fabian
name: Wurster, Annika
name: Sauer, Alexander
Publisher: name: Hannover : publish-Ing.
Year: 2020
Subjects: subject: Energy storage
subject: energy flexibility
subject: sizing methodology
subject: atypical grid usage
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: There are many applications for electric storage systems (ESS) in manufacturing systems. While applications for maintaining production in case of a blackout are already established and economical, applications for optimizing energy supply are becoming increasingly interesting for manufacturing companies. Atypical grid usage is one application for optimizing the energy supply which has the potential to reduce the grid fee of industrial consumers. The grid fee for industrial consumers depends on the characteristics of the energy consumption. The smoother the power is drawn from the grid, the less grid fee has to be paid. This goal can be achieved by integrating an electric storage system. Electric storage systems offer high power and capacity, making them the ideal solution for this application. The challenge is the sizing of the electric storage system and the resulting economic efficiency. In this article a sizing methodology for electric storage systems, aiming for atypical grid usage, is presented.
Activity-based shop floor management – A concept to enhance flexibility
Creators: name: Tropschuh, Barbara
name: Korder, Svenja
name: Dillinger, Fabian
name: Bauer, Harald
name: Reinhardt, Gunter
Publisher: name: Hannover : publish-Ing.
Year: 2020
Subjects: subject: Flexibility
subject: Shop floor management
subject: Competence orientation
subject: Work organization
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Volatile markets, an increasing shortage of skilled workers and individual customer requirements as well as the growing desire for a fulfilling work-life balance among employees are influencing the production environment. Flexibility and adaptability are possible key factors to enable companies to meet these challenges. A concept for an activity-based shop floor management has been developed to make work organization more flexible in the area of production. In this concept, first of all activity packages are defined and evaluated, for example with regard to their requirements. Furthermore, it is necessary to define competence levels into which the employees are clustered according to their abilities. Thus, a competence-oriented matching of activity packages and employees is possible. The employee can choose tasks from the pre-grouped activity packages. The result is a generally valid concept for flexible staff deployment planning, which is evaluated in the automotive industry. This concept allows a change from role-based to activity-based task assignment with gamified incentive system, whereby specialists can be deployed more efficiently according to their qualifications.
Innovative method for cutting edge preparation with flexible diamond tools
Creators: name: Denkena, Berend
name: Krödel, Alexander
name: Hein, Markus
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2020
Subjects: subject: cutting edge rounding
subject: asymmetrical rounding
subject: polishing
subject: diamond tool
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: The micro geometry of the cutting edge is of central importance for the performance of cutting tools. It influences all essential parameters in the machining process: chip formation, thermal and mechanical load on the tool and the workpiece, tool wear and the resulting workpiece quality. The effect depends on the size and shape of the cutting edge rounding. Depending on the machining process, asymmetrical roundings often show the greatest potential. In addition to increasing tool life, the quality of the surfaces produced can be improved by a specifically designed asymmetrical rounding. For edge preparation, blasting, brushing and drag finishing are used in industrial applications. However, an economic production of asymmetrical cutting edge geometries on cutting tools with complicated cutting edge geometry, such as solid carbide tools with helical cutting edge, cannot be achieved with these methods. Therefore, a novel method for preparation of the cutting edge rounding using flexible bond diamond polishing tools is introduced. Hence, the conducted research in this study analyzes the basic mechanisms and influencing factors using the new preparation method. For this purpose, polishing tests are carried out on carbide indexable inserts. The results show that the polishing tools can be used to create both asymmetrical and symmetrical roundings in an industrially relevant dimension. © 2019 The Authors. Published by Elsevier B.V.