cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Design of Industrial Workplaces to relieve Workers when Interacting with Joint-Arm-Robots
Creators: name: Ender, J
Publisher: name: Liverpool John Moores University
Year: 2021

description: A comprehensive understanding of the needs of the user is required to design adequate workplace systems in general, but especially in the highly digitised area of industry where operators are interacting with autonomously operating machines. There is little knowledge in design criteria for professionals to enable adequate developments of system design for Human-Machine Interaction, e.g. Human-Robot Collaboration regarding the effects of design decisions to all three levels of Human Factors, i.e. physiological, cognitive and organisational limitations. Moreover, there is little known about objective measurement procedures that evaluate whether the operator subjectively perceives the workplace system design as assistance and improvement. The research presented in the following is affiliated with the scientific discipline of Human Factors Engineering and focuses on the evaluation of Human Factor issues within the digitised industry. Based on broad theoretical and empirical investigations, the results of this research extend our knowledge of adequate Human-Centred Design by providing reliable, powerful design criteria for workplaces where operators interact with machines/collaborate with robots, but also an overall technique, the Objective Workload Detection Method, for evaluation of the effectiveness of design investigation focusing on cognitive stress relief. Through the application of this method within a controlled experiment, the validation of the derived design criteria was confirmed. The study significantly shows how the cognitive workload can be relieved by an assisting environment. This work also gives one best-practice design example of a self-adapting workplace system for hybrid Human-Robot Teams. Following the Human-Centred Design method, the concept of Assisting Industrial Workplace System for Human-Robot Collaboration has been successfully developed as a flexible hybrid unit design. The prototype is related to a real-world scenario from the aerospace industry and the demonstrator was implemented within a laboratory set-up. This work seamlessly applies techniques from interdisciplinary science fields, e.g. Engineering, Neuroscience, Gestalt theory, and Design. Equally, the design criteria and the evaluation method will support professionals from varied disciplines to succeed in the creation process of future system-designs by giving a clear indication of future Human-Centred Design research.
พระบรมราโชวาทในพิธีพระราชทานปริญญาบัตรมหาวิทยาลัยศรีนครินทรวิโรฒ: ความสัมพันธ์ด้านสารัตถะคำสอนกับหลักพุทธจริยธรรม
Creators: name: กาญจนา ต้นโพธิ์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2020
Subjects: พระบรมราโชวาทในพิธีพระราชทานปริญญาบัตรมหาวิทยาลัยศรีนครินทรวิโรฒ
สารัตถะคำสอน
หลักพุทธจริยธรรม

description: วรรณวิทัศน์, 20, 1, 226-268
M Subdwarf Research. II. Atmospheric Parameters and Kinematics
Creators: name: Zhang, Shuo
name: Luo, A-Li
name: Comte, Georges
name: Wang, Rui
name: Li, Yinbi
name: Du, Bing
name: Hou, Wen
name: Qin, Li
name: Gizis, John
name: Chen, Jian-Jun
name: Chen, Xiang-Lei
name: Lu, Yan
name: Song, Yi-Han
name: Zhang, Hua-Wei
name: Zuo, Fang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Applying the revised M subdwarf classification criteria discussed in Paper I to LAMOST DR7, combining the M subdwarf sample from Savcheva et al, a new M subdwarf sample was constructed for further study. The atmospheric parameters for each object were derived fitting with the PHOENIX grid, combining with Gaia DR2, the relationship between the gravity and metallicity were explored according to the locus both in the color-absolute magnitude diagram and the reduced proper motion diagram. Objects that have both the largest gravity and the lowest metallicity are located away from the main-sequence cloud and may be considered as the intrinsic M subdwarfs, which can be classified as luminosity class VI. Another group of objects whose spectra show typical M subdwarf characters have lower gravity and relatively moderate metal deficiency and occupy part of the ordinary M dwarf region in both diagrams. The Galactic U , V , W space velocity components and their dispersion show that the local Galactic halo population sampled in the solar neighborhood is represented by objects of high gravity and an inconspicuous bimodal metallicity distribution, with a fraction of prograde orbits. The other M subdwarfs seem to partly belong to the thick disk component with a significant fraction of thin disk moderately metal-poor objects intricately mixed with them. However, the selection effects, especially the favored anti-center direction of investigation in the LAMOST sub-sample, but also contamination by multiplicity and parameter coupling could play important roles and need to be further investigated.
description: 22 page, 19 Figures, Accepted by ApJ
Tempering glass spheres and related topics
Creators: name: Narayanaswamy, O. S.
name: Gordon, Robert
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: The generation of permanent STRESSES in glass spheres by rapid cooling is described, starting with transient STRESSES that arise during the tempering process. The Utility of tempered glass spheres is briefly considered in the context of the permanent STRESSES produced. Two possible effects of transient STRESSES are: the risk of in-process breakage as a result of excessive tension in an already cold surface, and bubble formation in - or other distortion of - spheres as a result of high hydrostatic tension in their interior while that is still hot and fluid. In that connection, the distortion of the edges of tempered glass plates is also briefly considered. The mathematical model of tempering spheres, on which this discussion is based, is outlined in an appendix.
อักษรไทในอินเดีย: การดัดแปลงอักษรและอักขรวิธีเพื่อใช้เขียนภาษาบาลี
Creators: name: สิทธิชัย พันชน
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2020
Subjects: อักขรวิธี
ไทในอินเดีย
การดัดแปลง
ภาษาบาลี

description: วรรณวิทัศน์, 20, 2, 1-28
Digital Transformations of Classrooms in Virtual Reality
Creators: name: Gao, Hong
name: Bozkir, Efe
name: Hasenbein, Lisa
name: Hahn, Jens-Uwe
name: Göllner, Richard
name: Kasneci, Enkelejda
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: With rapid developments in consumer-level head-mounted displays and computer graphics, immersive VR has the potential to take online and remote learning closer to real-world settings. However, the effects of such digital transformations on learners, particularly for VR, have not been evaluated in depth. This work investigates the interaction-related effects of sitting positions of learners, visualization styles of peer-learners and teachers, and hand-raising behaviors of virtual peer-learners on learners in an immersive VR classroom, using eye tracking data. Our results indicate that learners sitting in the back of the virtual classroom may have difficulties extracting information. Additionally, we find indications that learners engage with lectures more efficiently if virtual avatars are visualized with realistic styles. Lastly, we find different eye movement behaviors towards different performance levels of virtual peer-learners, which should be investigated further. Our findings present an important baseline for design decisions for VR classrooms.
description: CHI Conference on Human Factors in Computing Systems (CHI '21)
Epitaxial graphene transistors on SiC substrates
Creators: name: Kedzierski, Jakub
name: Hsu, Pei-Lan
name: Healey, Paul
name: Wyatt, Peter
name: Keast, Craig
name: Sprinkle, Mike
name: Berger, Claire
name: de Heer, Walt
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper describes the behavior of top gated transistors fabricated using carbon, particularly epitaxial graphene on SiC, as the active material. In the past decade research has identified carbon-based electronics as a possible alternative to silicon-based electronics. This enthusiasm was spurred by high carbon nanotube carrier mobilities. However, nanotube production, placement, and control are all serious issues. Graphene, a thin sheet of graphitic carbon, can overcome some of these problems and therefore is a promising new electronic material. Although graphene devices have been built before, in this work we provide the first demonstration and systematic evaluation of arrays of a large number of transistors entirely produced using standard microelectronics methods. Graphene devices presented feature high-k dielectric, mobilities up to 5000 cm2/Vs and, Ion/Ioff ratios of up to 7, and are methodically analyzed to provide insight into the substrate properties. Typical of graphene, these micron-scale devices have negligible band gaps and therefore large leakage currents.
Interlaboratory comparison of ultraviolet transmittance and reflectance of coated and uncoated flat glass : Report of the International Commission on Glass Technical Committee 10 "Optical Properties of Glass"
Creators: name: Polato, Pietro
name: Roucour, Jean
name: Simons, José
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: Glass manufacturers generally characterize the ultraviolet behaviour of flat glass (glass for building or automotive applications) by normal incidence spectrophotometry. Intercomparisons have been organized by Technical Committee 10 of the International Commission on Glass among its members and one metrological Institute on spectrophotometric evaluations of ultraviolet transmittance and reflectance on uncoated and coated glasses. Spectral transmittance and reflectance were measured in the 280 to 380 nm ränge and parameters like UV transmittance and UV reflectance were computed following a procedure recommended by a European Standard. The purpose of these round robins was to assess the interlaboratory reproducibility and accuracy of the spectral measurements and of the computed values obtained by integration of the experimental data in the ultraviolet ränge. UV transmittance and UV reflectance were then evaluated for the selected samples using two new different ultraviolet radiation tables proposed by the International Organization for Standardization to evaluate the difference in the results obtained by applying the different Standard procedures. Finally, measurements were also performed in the first part of the visible ränge and a "Krochmann Damage Factor" was evaluated for the considered samples.
Compact Gauge Fields on Causal Dynamical Triangulations: a 2D case study
Creators: name: Candido, Alessandro
name: Clemente, Giuseppe
name: D'Elia, Massimo
name: Rottoli, Federico
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the discretization of Yang-Mills theories on Dynamical Triangulations in the compact formulation, with gauge fields living on the links of the dual graph associated with the triangulation, and the numerical investigation of the minimally coupled system by Monte Carlo simulations. We provide, in particular, an explicit construction and implementation of the Markov chain moves for 2D Causal Dynamical Triangulations coupled to either $U(1)$ or $SU(2)$ gauge fields; the results of exploratory numerical simulations on a toroidal geometry are also presented for both cases. We study the critical behavior of gravity related observables, determining the associated critical indices, which turn out to be independent of the bare gauge coupling: we obtain in particular $ν= 0.496(7)$ for the critical index regulating the divergence of the correlation length of the volume profiles. Gauge observables are also investigated, including holonomies (torelons) and, for the $U(1)$ gauge theory, the winding number and the topological susceptibility. An interesting result is that the critical slowing down of the topological charge, which affects various lattice field theories in the continuum limit, seems to be strongly suppressed (i.e., by orders of magnitude) by the presence of a locally variable geometry: that may suggest possible ways for improvement also in other contexts.
description: 13 pages, 14 figures
Property-composition relationships for potentially bioactive glasses
Creators: name: Karlsson, Kaj H.
name: Rönnlöf, Minna
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: The compositional dependence of thermal expansion, α (in 10¯⁶ K¯¹), transformation temperature, Tg (in °C), dilatometric softening point. Mg (in °C), and viscosity, η (in dPa s), was determined for low-silica glasses in the S y s t e m Na₂O - K₂O - MgO - CaO - -Β₂O₃-Ρ₂O₅-SiO₂. The following phenomenological equations were established: α = 3.625 + 0.345p_Na₂O + 0.266p_K₂O + 0.098p_CaO + 0.064p_P₂O₅ , Tg = 635.9 - 5.26p_Na₂O + 3.18p_K₂O- 3.16p_MgO - 0.47p_Na₂O*p_K₂O - 0.12p_K₂O * p_CaO , Mg = 790.6 - 17.83p_Na₂O - 5.79p_K₂O + 0.28p²_Na₂O - 0.39p²_MgO where p_ is oxide content in wt%. The viscosity was modelled to f i t an Arrhenius-type equation, lgη = Α + B/T. Giving η in dPa s, the compositional dependence of Α and Β were found as Α = - 55.707 + 0.597p_Na₂O + 0.591p_K₂O + 0.604p_MgO + 0.516p_CaO + 0.429p_P₂O₅ + 0.387p_SiO₂, Β = - 9 1 . 4 6 3p_Na₂O + 162.861p_CaO + 485.020p_Β₂O₃ + 249.200p_P₂O₅ + 285.212p_SiO₂·
Higher order chromatin structure of the tyrosinase gene locus
Creators: name: Rempel, Allan
Publisher: name: University of British Columbia
Year: 2009

description: An important enhancer/MAR (matrix attachment region) regulatory element in the mouse tyrosinase locus, located 15 kb upstream of the transcription initiation site, is responsible for imparting high level, position-independent tyrosinase transgene expression in neural crest-derived melanocytes. As MARs often coincide with the domain boundaries of gene loci, this MAR may also be the 5' domain boundary of the tyrosinase locus. General DNase I sensitivity assays of genomic DNA from cultured Cloudman S91 mouse melanoma cells showed that the region immediately flanking the upstream side of the MAR demonstrates a sensitivity approaching that of bulk chromatin, indicating that the MAR may be acting as a structural transition point between the open chromatin structure of the tyrosinase gene and the more closed architecture synonymous with heterochromatin. Four novel melanocytespecific DNase I hypersensitive sites (DHS) were mapped in the human tyrosinase gene locus of cultured SK-Mel-28 human melanoma cells. Three DHS were found upstream of the transcription start site: one at -10.5 kb which may represent the human homologue to the -15 kb enhancer/MAR in the mouse tyrosinase locus, one co-localizing with the promoter, and one representing a -2 kb enhancer element that is essential for high level human tyrosinase expression. A DHS located 15 kb downstream of exon 5 was also found that maps to no known cw-regulatory element. In addition, transient transfection analyses using recombinant luciferase reporter genes showed that the human tyrosinase coding sequences exhibit repressor activity, an observation that might explain discrepancies of coat pigmentation of transgenic mice generated in different studies. As well, the SK-N-SH human neuroblastoma cell line was used to investigate the temporal activation of the human tyrosinase gene locus.
Applying the Hilbert--Huang Decomposition to Horizontal Light Propagation C_n^2 data
Creators: name: Chang, Mark P. J. L.
name: Roura, Erick A.
name: Font, Carlos O.
name: Gilbreath, Charmaine
name: Oh, Eun
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The Hilbert Huang Transform is a new technique for the analysis of non--stationary signals. It comprises two distinct parts: Empirical Mode Decomposition (EMD) and the Hilbert Transform of each of the modes found from the first step to produce a Hilbert Spectrum. The EMD is an adaptive decomposition of the data, which results in the extraction of Intrinsic Mode Functions (IMFs). We discuss the application of the EMD to the calibration of two optical scintillometers that have been used to measure C_n^2 over horizontal paths on a building rooftop, and discuss the advantage of using the Marginal Hilbert Spectrum over the traditional Fourier Power Spectrum.
description: 9 pages, 11 figures, proc. SPIE 6268
Machine learning emulation of gravity wave drag in numerical weather forecasting
Creators: name: Chantry, Matthew
name: Hatfield, Sam
name: Duben, Peter
name: Polichtchouk, Inna
name: Palmer, Tim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We assess the value of machine learning as an accelerator for the parameterisation schemes of operational weather forecasting systems, specifically the parameterisation of non-orographic gravity wave drag. Emulators of this scheme can be trained to produce stable and accurate results up to seasonal forecasting timescales. Generally, more complex networks produce more accurate emulators. By training on an increased complexity version of the existing parameterisation scheme we build emulators that produce more accurate forecasts. {For medium range forecasting we find evidence our emulators are more accurate} than the version of the parametrisation scheme that is used for operational predictions. Using the current operational CPU hardware our emulators have a similar computational cost to the existing scheme, but are heavily limited by data movement. On GPU hardware our emulators perform ten times faster than the existing scheme on a CPU.
Determination of the water content of alkali lime silica glasses by IR spectroscopy using nuclear reaction analysis for calibration
Creators: name: Harder, Ulrike
name: Geißler, Heinz
name: Gaber, Martin
name: Hähnert, Manfred
name: Dersch, Oliver
name: Rauch, Friedrich
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: Systematic IR and NRA investigations were performed for two series of glasses with very different water contents. The glasses had the composition (in mol%): 16 R₂O · 10 CaO · 74 SiO₂ (R = sodium, potassium). The IR absorption coefTicients of the OH bands were found to be linearly correlated with the total hydrogen content obtained by the NRA measurements. Using the hydrogen concentration values from NRA, the total water contents were calculated and so-called practical IR extinction coefTicients were deduced. The values found for the soda-lime-silica glasses are 381 · mol¯¹ · cm¯¹ for the band at 3550cm¯¹ and 561 · mol¯¹ · cm¯¹ for the band at 2800cm¯¹. The values for the potassium-lime-silica glasses are 231 · mol¯¹ · cm¯¹ for the band at 3550 cm¯¹ and 78 l · mol¯¹ · cm¯¹ for the band at 2800 cm¯¹ Also, Scholze's two-band method was applied, resulting in good agreement between the water contents of the glasses derived from the IR and the NRA measurements.
Determination of the spin orientation of helical electrons in monolayer WTe2
Creators: name: Tan, Cheng
name: Deng, Ming-Xun
name: Xiang, Feixiang
name: Zheng, Guolin
name: Albarakati, Sultan
name: Algarni, Meri
name: Partridge, James
name: Hamilton, Alex R.
name: Wang, Rui-Qiang
name: Wang, Lan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Monolayer WTe2 is predicted to be a quantum spin Hall insulator (QSHI) and electron transport along its edges has been experimentally observed. However, the 'smoking gun' of QSHI, spin momentum locking of the edge electrons, has not been experimentally demonstrated. We propose a model to establish the relationship between the anisotropic magnetoresistance (AMR) and spin orientation of the helical electrons in WTe2. Based on the predictions of the model, angular dependent magnetoresistance measurements were carried out. The experimental results fully supported the model and the spin orientation of the helical edge electrons was determined. Our results not only demonstrate that WTe2 is indeed a QSHI, but also suggest a convenient method to determine the spin orientation of other QSHIs.
description: 32 pages, 11 figures
Solar Gravity Modes: Present and Future
Creators: name: Turck-Chieze, Sylvaine
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gravity modes are the best probes to study the solar radiative zone dynamics, especially in the nuclear core. These modes remain difficult to observe, but they are essential ingredients for progressing on the evolution of the Sun-Earth relationship at the level of centuries. Today, the knowledge of the internal dynamics comes from acoustic modes and concerns mainly the external 2% of the solar mass. Nevertheless, the flat rotation profile of the radiative zone compels physics beyond the standard framework. I summarize different attempts to look for gravity modes and the results obtained after 8 years of observation with the GOLF/SoHO instrument. Some gravity mode candidates (at 1mm/s level) have appeared with more than 98% confidence level as quadruplets or quintuplets. These patterns, if confirmed as gravity modes, may reveal very exciting physics of the solar core. Getting information on rotation and magnetic field in the solar core are real keys to simulate a complete dynamical solar picture. The understanding of the solar dynamics, the precise energetic balance and its temporal evolution necessitate more observations of the radiative zone which constitutes 98% of the Sun by mass. Our expertise in Doppler velocity measurements allows a step further and a new instrumental concept to reach velocities as low as 0.1 mm/s. A prototype will join the Tenerife site in 2006 and a space version is proposed to CNES and ESA as a microsatellite or part of a payload at the L1 Lagrange point.
description: 8 pages, in press in Advance Space Research : COSPAR 2004
Static and Dynamic Properties of Block-Copolymer Based Grafted Nanoparticles Across the Non-Ergodicity Transition
Creators: name: Parisi, Daniele
name: Ruiz-Franco, José
name: Ruan, Yingbo
name: Liu, Chen Yiang
name: Loppinet, Benoit
name: Zaccarelli, Emanuela
name: Vlassopoulos, Dimitris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a systematic investigation of static and dynamic properties of block copolymer micelles with crosslinked cores, representing model polymer-grafted nanoparticles, over a wide concentration range from dilute regime to an arrested (crystalline) state, by means of light and neutron scattering, complemented by linear viscoelasticity. We have followed the evolution of their scattering intensity and diffusion dynamics throughout the non-ergodicity transition and the observed results have been contrasted against appropriately coarse-grained Langevin Dynamics simulations. These stable model soft particles of the core-shell type are situated between ultrasoft stars and hard spheres, and the well-known star pair interaction potential is not appropriate to describe them. Instead, we have found that an effective brush interaction potential provides very satisfactory agreement between experiments and simulations, offering insights into the interplay of softness and dynamics in spherical colloidal suspensions.
Round robin for glass tank models : Report of the International Commission on Glass (ICG) Technical Committee 21 "Modelling of Glass Melts"
Creators: name: Muschick, Wolfgang
name: Muysenberg, Erik
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: Different numerical and physical models for glass tanks were compared by a simple round robin. Most models produced qualitatively similar velocity and temperature distributions. The minimum residence time of tracers in numerical models gave similar values too, but differed to the physical scale model. An explanation for this is the different kind of batch modelling in both methods of Simulation. Especially the velocity vectors at some fixed test points showed larger deviations. In regions with steep gradients small variations in the local flow distribution can lead to large changes at fixed test points. These differences therefore should not be rated very high.
Anyon Wave Function for the Fractional Quantum Hall Effect
Creators: name: Ciftja, O.
name: Japaridze, G.
name: Wang, X. Q.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An anyon wave function (characterized by the statistical factor $n$) projected onto the lowest Landau level is derived for the fractional quantum Hall effect states at filling factor $ν= n/(2pn+1)$ ($p$ and $n$ are integers). We study the properties of the anyon wave function by using detailed Monte Carlo simulations in disk geometry and show that the anyon ground-state energy is a lower bound to the composite fermion one.
description: Reference added
บทบาทการควบคุม : ความสัมพันธ์เชิงอำนาจในคำฉันท์ดุษฎีสังเวยกล่อมช้าง
Creators: name: วรุณญา อัจฉริยบดี
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2020
Subjects: บทบาทการควบคุม
ความสัมพันธ์เชิงอำนาจ
วรรณคดี
คำฉันท์ดุษฎีสังเวยกล่อมช้าง

description: วรรณวิทัศน์, 20, 2, 29-62
Oxygen balance in sulfur-containing glass melts
Creators: name: Müller-Simon, Hayo
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: In sulfur-containing glasses the Fe²⁺/Fe³⁺ ratio at a given oxygen partial pressure shows a considerable shift compared to glasses without sulfur. This effect is caused by an electron exchange and governs the redox behavior of industrial glass melts at fming temperature. The electron exchange is formulated by a thermodynamic approach which can quantitatively describe the redox reactions between melting temperature and room temperature in flint glasses. In amber and green glasses this dependence is superimposed by the dissolution of SO₂-containing bubbles, which results in an additional shift of the oxygen partial pressure in the direction of the sulfur solubility minimum during cooling. From this shift the maximum solubility of sulfite in soda-lime-sihca glass melts can be estimated to be about 0.025 wt% SO₃. Resorption curves of sulfite sulfur in the melt describe the refining quahty. They can serve as a tool for improving the secondary refining in sulfur-containing industrial glass melts.
Analysis of variability in the burst oscillations of the accreting millisecond pulsar XTE J1814-338
Creators: name: Watts, Anna L.
name: Strohmayer, Tod E.
name: Markwardt, Craig B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The accreting millisecond pulsar XTE J1814-338 exhibits oscillations at the known spin frequency during Type I X-ray bursts. The properties of the burst oscillations reflect the nature of the thermal asymmetry on the stellar surface. We present an analysis of the variability of the burst oscillations of this source, focusing on three characteristics: fractional amplitude, harmonic content and frequency. Fractional amplitude and harmonic content constrain the size, shape and position of the emitting region, whilst variations in frequency indicate motion of the emitting region on the neutron star surface. We examine both long-term variability over the course of the outburst, and short-term variability during the bursts. For most of the bursts, fractional amplitude is consistent with that of the accretion pulsations, implying a low degree of fuel spread. There is however a population of bursts whose fractional amplitudes are substantially lower, implying a higher degree of fuel spread, possibly forced by the explosive burning front of a precursor burst. For the first harmonic, substantial differences between the burst and accretion pulsations suggest that hotspot geometry is not the only mechanism giving rise to harmonic content in the latter. Fractional amplitude variability during the bursts is low; we cannot rule out the hypothesis that the fractional amplitude remains constant for bursts that do not exhibit photospheric radius expansion (PRE). There are no significant variations in frequency in any of the bursts except for the one burst that exhibits PRE. This burst exhibits a highly significant but small ($\approx 0.1$Hz) drop in frequency in the burst rise. The timescale of the frequency shift is slower than simple burning layer expansion models predict, suggesting that other mechanisms may be at work.
description: 20 pages, 20 figures, accepted for publication in ApJ. Uses emulateapj.cls
Laser-accelerated, low divergence 15 MeV quasi-monoenergetic electron bunches at 1 kHz
Creators: name: Salehi, F.
name: Le, M.
name: Railing, L.
name: Milchberg, H. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We demonstrate laser wakefield acceleration of quasi-monoenergetic electron bunches up to 15 MeV at 1 kHz repetition rate with 2.5 pC charge per bunch and a core with < 7 mrad beam divergence. Acceleration is driven by 5 fs, < 2.7 mJ laser pulses incident on a thin, near-critical density hydrogen gas jet. Low beam divergence is attributed to reduced sensitivity to laser carrier envelope phase slip, achieved in two ways using laser polarization and gas jet control: (1) electron injection into the wake on the gas jet's plasma density downramp, and (2) use of circularly polarized drive pulses. Under conditions of mild wavebreaking in the downramp, electron beam profiles have a 2D Lorentzian shape consistent with a kappa electron energy distribution. Such distributions had previously been observed only in space or dusty plasmas. We attribute this shape to the strongly correlated collisionless bunch confined by the quadratic wakefield bubble potential, where transverse velocity space diffusion is imparted to the bunch by the red-shifted laser field in the bubble.
Isometric Embeddings and Noncommutative Branes in Homogeneous Gravitational Waves
Creators: name: Halliday, Sam
name: Szabo, Richard J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We characterize the worldvolume theories on symmetric D-branes in a six-dimensional Cahen-Wallach pp-wave supported by a constant Neveu-Schwarz three-form flux. We find a class of flat noncommutative euclidean D3-branes analogous to branes in a constant magnetic field, as well as curved noncommutative lorentzian D3-branes analogous to branes in an electric background. In the former case the noncommutative field theory on the branes is constructed from first principles, related to dynamics of fuzzy spheres in the worldvolumes, and used to analyse the flat space limits of the string theory. The worldvolume theories on all other symmetric branes in the background are local field theories. The physical origins of all these theories are described through the interplay between isometric embeddings of branes in the spacetime and the Penrose-Gueven limit of AdS3 x S3 with Neveu-Schwarz three-form flux. The noncommutative field theory of a non-symmetric spacetime-filling D-brane is also constructed, giving a spatially varying but time-independent noncommutativity analogous to that of the Dolan-Nappi model.
description: 52 pages; v2: References added
Glass decomposition by hydrofluoric acid and perchloric acid under atmospheric pressure
Creators: name: Křest'an, Vítězslav
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: The experimentally verified glass decomposition procedure using HF and HCIO₄ acids in platinum dishes under atmospheric pressure is described. This procedure provides relatively low and reproducible amounts of fluorine and Silicon ions in the reaction products. These have been identified as potentially interfering ions during the following treatment of the decomposed sample and therefore, they are chosen as criteria for the evaluation of the quahty and reliability of the decomposition process. The decomposition procedure suggested differs from those published before especially in respect of concentrations, volumes and rates of decomposition acids per 1 g of sample. The weight of the decomposed sample and the matrix composition should also be considered. The formation of soluble, relatively stable (undissociated) or barely soluble "secondary phases" in reaction products is caused by unfavourable decomposition conditions, in most cases. This fact is presented by the example of X-ray diffraction of barely soluble reaction products isolated from HF-HCIO₄ decomposition of low alkah oxides-lime-alumina-magnesia-borosilicate glass, type E.
Scalar form factors and nuclear interactions
Creators: name: Robilotta, M. R.
name: Zarnauskas, G. R. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The scalar-isoscalar term in the two-pion exchange $NN$ potential is abnormally large and does not respect the hierarchy of effects predicted by chiral perturbation theory. We argue that this anomaly is associated with non-perturbative effects, which are also present in the $πN$ scalar form factor.
description: Talk given at the 20EFB, Pisa, Italy, September 2007. 3 pages and 4 figures
Properties of polishing media for precision optics
Creators: name: Kaller, Adolf
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: The first theory concerning the pohshing of glass, which viewed polishing as an extension of the grinding process with finer abrasives, and the flow theory of Beilby, both stipulate purely hypothetically that the polishing grains should have a very high hardness. This hypothesis of high hardness of the polishing grains was so strongly supported by Smekal and Brüche in the 40's and 50's and by other scientists in the following years that it became dogma, i.e., a claim without proof, and has remained virtually universally accepted to this day. The results of the investigations of the present author have shown, however, that first, extra lattice defects in the crystalline oxides used as polishing agents are the primary characteristics that are responsible for the gripping of the grains during polishing and second, the hardness of the grains of the polishing agent must be lower than that of the material which is being polished. By and large these results have been ignored in the literature, because they are in Opposition to the dogma that the polishing agent must have a high hardness. Clear proof is presented in this paper that disproves the generally accepted hypothesis that polishing can be done with very fine grinding powder, and that the polishing agent must be harder than the glass which is to be polished. The properties of polishing agents for use in polishing for precision optics will be described on the basis of the theory of polishing agents containing lattice defects.
Static and Dynamic Properties of Block-Copolymer Based Grafted Nanoparticles Across the Non-Ergodicity Transition
Creators: name: Parisi, Daniele
name: Ruiz-Franco, Jose
name: Ruan, Yingbo
name: Liu, Chen Yiang
name: Zaccarelli, Benoit Loppinet Emanuela
name: Vlassopoulos, Dimitris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a systematic investigation of static and dynamic properties of block copolymer micelles with crosslinked cores, representing model polymer-grafted nanoparticles, over a wide concentration range from dilute regime to an arrested (crystalline) state, by means of light and neutron scattering, complemented by linear viscoelasticity. We have followed the evolution of their scattering intensity and diffusion dynamics throughout the non-ergodicity transition and the observed results have been contrasted against appropriately coarse-grained Langevin Dynamics simulations. These stable model soft particles of the core-shell type are situated between ultrasoft stars and hard spheres, and the well-known star pair interaction potential is not appropriate to describe them. Instead, we have found that an effective brush interaction potential provides very satisfactory agreement between experiments and simulations, offering insights into the interplay of softness and dynamics in spherical colloidal suspensions.
description: This version corresponds only to the Supporting Information published in "Static and Dynamic Properties of Block-Copolymer Based Grafted Nanoparticles Across the Non-Ergodicity Transition". This information has been attached to the main manuscript, identified as arXiv:2011.06373
โหราศาสตร์กับการสร้างสรรค์นวนิยายเรื่องฤกษ์สังหารของ วรรณวรรธน์
Creators: name: ศศิชา เตียวลักษณ์
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2020
Subjects: โหราศาสตร์
นวนิยายกับสังคม
โหราศาสตร์กับวรรณกรรม

description: วรรณวิทัศน์, 20, 2, 63-104
New $M$-estimators in semi-parametric regression with errors in variables
Creators: name: Butucea, Cristina
name: Taupin, Marie-Luce
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In the regression model with errors in variables, we observe $n$ i.i.d. copies of $(Y,Z)$ satisfying $Y=f_{θ^0}(X)+ξ$ and $Z=X+ε$ involving independent and unobserved random variables $X,ξ,ε$ plus a regression function $f_{θ^0}$, known up to a finite dimensional $θ^0$. The common densities of the $X_i$'s and of the $ξ_i$'s are unknown, whereas the distribution of $ε$ is completely known. We aim at estimating the parameter $θ^0$ by using the observations $(Y_1,Z_1),...,(Y_n,Z_n)$. We propose an estimation procedure based on the least square criterion $\tilde{S}_{θ^0,g}(θ)=\m athbb{E}_{θ^0,g}[((Y-f_θ(X))^2w(X)]$ where $w$ is a weight function to be chosen. We propose an estimator and derive an upper bound for its risk that depends on the smoothness of the errors density $p_ε$ and on the smoothness properties of $w(x)f_θ(x)$. Furthermore, we give sufficient conditions that ensure that the parametric rate of convergence is achieved. We provide practical recipes for the choice of $w$ in the case of nonlinear regression functions which are smooth on pieces allowing to gain in the order of the rate of convergence, up to the parametric rate in some cases. We also consider extensions of the estimation procedure, in particular, when a choice of $w_θ$ depending on $θ$ would be more appropriate.
description: Published in at http://dx.doi.org/10.1214/07-AIHP107 the Annales de l'Institut Henri Poincar\'e - Probabilit\'es et Statistiques (http://www.imstat.org/aihp/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Individual and familial risk factors for adolescent psychopathy
Creators: name: McBride, Michelle L.
Publisher: name: University of British Columbia
Year: 2009

description: Despite the wealth of research on psychopathy in adulthood, little is known about the developmental antecedents of the disorder. The purpose of the present investigation was to examine developmental risk factors to psychopathy in two adolescent offender populations. In Study 1, subjects were 233 adolescent sexual offenders who had participated in a sex-offender treatment program between 1985 and 1992. Archival data were used to retrospectively complete the Psychopathy Checklist: Youth Version (PCL:YV) and to code family background, individual, demographic, and criminological variables. PCL:YV scores were associated with physical abuse, parental social deviance, and adolescent Hyperactivity-Impulsivity-Attention (HIA) problems. In addition, relationships between PCL:YV scores and demographic and criminological variables were similar to those found in adult populations. In Study 2, mothers of 74 adolescent offenders completed questionnaires related to parenting strategies, physical abuse, maternal psychopathy, and child characteristics. The PCL:YV was completed using file information. PCL:YV scores were associated with physical abuse by father, maternal psychopathy, ineffective parenting strategies, and HIA. Results also indicated that the Psychopathy Screening Device, a measure of psychopathy in children, showed low concurrent validity with the PCL:YV. It was concluded that the investigation of risk factors is important to both our understanding of psychopathy and to early identification and treatment of those at risk for the disorder.
Intracluster Light: a luminous tracer for dark matter in clusters of galaxies
Creators: name: Montes, Mireia
Publisher: name: Zenodo
Year: 2019

description: The vast majority of the mass in the Universe is expected to be in form of dark matter. Invisible as it is, it would be ideal to identify a luminous tracer that will mimic their spatial distribution. The distribution of stars within the galaxies is not a good tracer of the dark matter as they are originated in a dissipative process that locate most of the stars in the centre of the haloes. However, we expect that some stars whose spatial distribution results from the interactions of galaxies in the cluster follow the underlying dark matter distribution. These stars form the so called intracluster light (ICL). Here we compare the distribution of the dark matter mass in massive galaxy clusters (as traced by gravitational lensing models) with the distribution of ICL, using the exquisite data from the Hubble Frontier Fields. Using a shape matching measurement to assess the similarities, the Modified Hausdorff distance, we find an excellent agreement between the spatial distribution of the total mass and the intracluster light distribution. This gives us the first reliable luminous tracer of dark matter halos in galaxy clusters. Our finding opens the possibility to explore the dark matter distribution of galaxy clusters using only their low surface brightness light.
Bad metallic transport in geometrically frustrated models
Creators: name: Mendez-Valderrama, J. F.
name: Chowdhury, Debanjan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the transport properties for a family of geometrically frustrated models on the triangular lattice with an interaction scale far exceeding the single-particle bandwidth. Starting from the interaction-only limit, which can be solved exactly, we analyze the transport and thermodynamic behavior as a function of filling and temperature at the leading non-trivial order in the single-particle hopping. Over a broad range of intermediate temperatures, we find evidence of a dc resistivity scaling linearly with temperature and with typical values far exceeding the quantum of resistance, $h/e^2$. At a sequence of commensurate fillings, the bad-metallic regime eventually crosses over into interaction induced insulating phases in the limit of low temperatures. We discuss the relevance of our results to experiments in cold-atom and moiré heterostructure based platforms.
description: 37 pages, 11 figures; (v2) Final published version
Redox behaviour of polyvalent ions in phosphate glass melts and phosphate glasses
Creators: name: Matthai, Annegret
name: Doris, Ehrt
name: Rüssel, Christian
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1998
Subjects: subject: 660

description: Glass melts and glasses with the basie composition NaPO₃ · 2Sr(PO₃)₂ doped with V₂O₅ and Fe₂O₃ were studied with the aid of square-wave voltammetry and spectroscopic methods. From the square-wave voltammetry in the glass melt, a linear dependence of the peak potentials on the temperature was obtained. The Standard enthalpy ΔH⁰, the Standard entropy ΔS⁰ and lg(C_ox/C_red) of the transitions Fe³⁺/Fe²⁺ and V⁴⁺/V³⁺ were calculated. The diffusion coefficients calculated from the peak currents measured follow Arrhenius' law. By means of electron spin resonance, the concentration of V⁴⁺ was determined. The corresponding extinction coefficients for the V⁴⁺ bands were calculated from the absorption spectra. Concerning the vanadium-containing glass, the results of square-wave voltammetry and spectroscopy were compared quantitatively. For the iron-doped glass, the comparison was only qualitative.
Vertex Ring-Indexed Lie Algebras
Creators: name: Fairlie, David
name: Zachos, Cosmas
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Infinite-dimensional Lie algebras are introduced, which are only partially graded, and are specified by indices lying on cyclotomic rings. They may be thought of as generalizations of the Onsager algebra, but unlike it, or its sl(n) generalizations, they are not subalgebras of the loop algebras associated with sl(n). In a particular interesting case associated with sl(3), their indices lie on the Eisenstein integer triangular lattice, and these algebras are expected to underlie vertex operator combinations in CFT, brane physics, and graphite monolayers.
description: Plain LaTex2e, 7 pages
Random Matrix Theory and Analysis of Nucleus-Nucleus Collision at High Energies
Creators: name: Shahaliev, E. I.
name: Nazmitdinov, R. G.
name: Kuznetsov, A. A.
name: Suleymanov, M. K.
name: Teryaev, O. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a novel method for analysis of experimental data obtained at relativistic nucleus-nucleus collisions. The method, based on the ideas of Random Matrix Theory, is applied to detect systematic errors that occur at measurements of momentum distributions of emitted particles. The unfolded momentum distribution is well described by the Gaussian orthogonal ensemble of random matrices, when the uncertainty in the momentum distribution is maximal. The method is free from unwanted background contributions.
description: 9 pages, 4 figures,XVII International Baldin Seminar, Relativistic Nuclear Physics and Quantum Chromodynamics
A discussion on "Numerical computations of resonant sloshing using the modified isoAdvector method and the buoyancy-modified turbulence closure model" [Appl. Ocean Res. (2019), 93, article no. 101829, doi:10.1016.j.apor.2019.05.014]
Creators: name: Fuhrman, David R.
name: Larsen, Bjarke Eltard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: A discussion on Li et al. (2019) [Numerical computations of resonant sloshing using the modified isoAdvector method and the buoyancy-modified turbulence closure model. Appl. Ocean Res. 93, article no. 101829, DOI:10.1016.j.apor.2019.05.014] is provided. Some mis-characterizations regarding the work of Larsen and Fuhrman (2018) [On the over-production of turbulence beneath surface waves using Reynolds-averaged Navier-Stokes models. J. Fluid Mech. 853, 419-460, DOI:10.1017/jfm.2018.577], on stabilizing two-equation turbulence closures beneath surface waves, are clarified.
description: Accepted manuscript