cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: A Generalized Slope Stability Computer Program:
title: User’s Guide for HOPK-I
titleType: Subtitle
Creators: name: Hopkins, Tommy C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1986
Subjects: subject: Transportation Engineering

description: Data entry and operation of a generalized slope stability computer program are described. The computer program is based on a new approach to formulating and solving the slope stability equilibrium equations. The moment equation as well as the horizontal and vertical equilibrium equations are considered in the model. The purpose of the study was to implement the new approach. The computer program may be used to compute the factor of safety of slip surfaces of arbitrary shape and circular slip surfaces. Effective stress and total stress conditions may be analyzed. Four options are available for computing pore pressures. Both piezometric coordinates and pore-pressure rations may be used. The program contains a routine for entering undrained shear strengths as a function of depth. A pseudo-statical approach is used to simulate earthquake forces. The program contains an approach for solving problems that may involve tension cracks. The tension crack model is presented in terms of effective stress, although total conditions may be analyzed. The model solution yields a depth of tension crack based on the mobilized shear strength parameters and is compatible with the factor of safety. Compatibility is achieved through iteration. Alternatively, if the depth of tension crack is known or estimated, then the fixed value of the depth of tension crack may be entered. The tension crack model may be useful in solving such problems as cut slopes and embankments located on soft foundations susceptible to cracking. The program contains a search routine for locating the most critical slip surface having a minimum factor of safety. The search analysis may be used in conjunction with the tension crack analysis and the pseudo-statical earthquake analysis. Eighteen slope stability examples representing a variety of stability conditions and involving slip surfaces of arbitrary shapes and circular slip surfaces were selected and solved. Solutions obtained from the HOPK-I computer model are compared to solutions obtained from stability models developed by Morgenstern and Price, Bishop, Spencer, Janbu, and Hardin. Results are compared to solutions obtained from the ICES LEASE, KY-BISHOP, REAME, and STABL stability computer programs. Generally, differences between solutions from the HOPK-I model and solutions from the Bishop model were about two percent or less. Differences between solutions from the HOPK-I model and solutions obtained from the models developed by Morgenstern and Price, Spencer, Janbu, and Harding were less than about four percent. The simplified Janbu option of the STABL program and the ordinary method of slices generally yielded solutions some 4 to 12 percent lower than solutions obtained from the HOPK-I program.
Three-dimensional computational fluid dynamics simulations of complex multiphase flows with surfactants
Creators: name: Constante Amores, Cristian
Publisher: name: Imperial College London
Year: 2020

description: In this thesis, I have worked on direct numerical simulations to elucidate the physics of vortex- surface interaction in turbulent multiphase jets for industrial mixing applications. The thesis topic focuses on understanding physics of interface breakup and coalescence, which exemplify situations wherein the interface undergoes topological transitions, e.g. filament breakup into drops, and merg- ing of drops/bubbles due to coalescence, accounting for surfactant-induced effects. These transitions involve the development of singularities where interfacial distances vanish and velocity fields diverge, requiring highly-specialised numerical techniques.
An electronic neuromorphic system for real-time detection of High Frequency Oscillations (HFOs) in intracranial EEG
Creators: name: Sharifshazileh, Mohammadali
name: Burelo, Karla
name: Sarnthein, Johannes
name: Indiveri, Giacomo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: In this work, we present a neuromorphic system that combines for the first time a neural recording headstage with a signal-to-spike conversion circuit and a multi-core spiking neural network (SNN) architecture on the same die for recording, processing, and detecting High Frequency Oscillations (HFO), which are biomarkers for the epileptogenic zone. The device was fabricated using a standard 0.18$μ$m CMOS technology node and has a total area of 99mm$^{2}$. We demonstrate its application to HFO detection in the iEEG recorded from 9 patients with temporal lobe epilepsy who subsequently underwent epilepsy surgery. The total average power consumption of the chip during the detection task was 614.3$μ$W. We show how the neuromorphic system can reliably detect HFOs: the system predicts postsurgical seizure outcome with state-of-the-art accuracy, specificity and sensitivity (78%, 100%, and 33% respectively). This is the first feasibility study towards identifying relevant features in intracranial human data in real-time, on-chip, using event-based processors and spiking neural networks. By providing "neuromorphic intelligence" to neural recording circuits the approach proposed will pave the way for the development of systems that can detect HFO areas directly in the operation room and improve the seizure outcome of epilepsy surgery.
description: 16 pages. A short video describing the rationale underlying the study can be viewed on https://youtu.be/NuAA91fdmaM
Using semantic document representation to increase performance in information retrieval
Creators: name: Rongione, Nicholas
Publisher: name: University of British Columbia
Year: 2009

description: The first computational Information Retrieval projects were straightforward encodings of card catalogues and look-up tables that had existed before. Soon after, these electronic indices evolved into more advanced structures. Primary among those are the Inverted Index (II) and the Vector Model (VM). These new structures expanded the domain of indexing science to large sets of texts heterogeneous with respect to content and length. This thesis presents an overview and critique of these techniques. It is found that these word driven methods are limited because they deal statistically with linguistic phenomena that resist that type of analysis. It goes on to suggest that semantic analysis of the target documents is needed to go beyond the keyword barrier' of traditional methods. After a discussion of three ways to encode the semantic content of sentences, JackendofPs Lexical Conceptual Structure (LCS) is selected as most appropriate for this domain. The FINDER semantic information retrieval system, which uses the LCS representation for target documents and user queries, is described. This description, along with example searches, support the claim that a semantic information retrieval system has practical advantages over one that uses traditional methods.
Which rheological parameters control the isochomal workability of glass melts from the Container glass industry?
Creators: name: Yue, Yuanzheng
name: Brückner, Rolf
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: Two species of brown glass which were characterized by industrial workability and quality criteria as "good" and " bad ", respectively, were investigated by the cylinder compression method and by the Christiansen method. Significant differences between the two species were found by means of the two methods in such a manner that the "good" brown glass samples indicate a better homogeneity and the corresponding melts a larger critical deformation rate, hc and therefore, a better isochomal workability than the " bad " brown glasses and melts. Additionally, the former ones show a larger ratio Fe²⁺/F_total with the consequence that they have a lower Newtonian viscosity at the same temperature. In contrast to the brown glass melts no clear differences in the rheological properties and isochomal workability could be detected between white Container glass melts which have also been characterized as "good" or as "bad". The white Container glass melts are classified to be less workable at equal viscosities than the brown glass melts. The stress generation modulus, E_max, and the normalized non-Newtonian viscosity, η/η0T, are less sensitive properties with respect to the redox State of the melts and to the homogeneity than the hc values. With the results of this study the limits of the sensitivity of the various properties resulting from the cylinder compression method were reached.
Johnson-Nyquist noise and the Casimir force between real metals at nonzero temperature
Creators: name: Bimonte, Giuseppe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known since a long time that all lossy conductors at finite temperature display an electronic noise, the Johnson-Nyquist noise, arising from the thermal agitation of electric charges inside the conductor. The existence of this noise implies that two nearby discharged conductors at finite temperature should repel each other, as a result of the electrodynamic interaction between the Johnson-Nyquist currents in either conductor and the eddy currents they induce in the other. It is suggested that this force is at the origin of the recently discovered large repulsive correction to the thermal Casimir force between two lossy metallic plates. Further support for this physical picture is obtained by studying a simple system of two linear noisy antennas. Using elementary concepts from circuit theory, we show that the repulsive force engendered by the Johnson-Nyquist noise results in the same kind of thermodynamic inconsistencies found in the Casimir problem. We show that all inconsistencies are however resolved if account is taken of capacitive effects associated with the end points of the antennas. Our findings therefore suggest that capacitive effects resulting from the finite size of the plates, may be essential for a resolution of the analogous problems met in the thermal Casimir effect.
description: 9 pages, 1 encapsulated figure. Contributed to 8th Workshop on Quantum Field Theory Under the Influence of External Conditions (QFEXT07), Leipzig, Germany, 17-21 Sep 2007
Detecting phonons and persistent currents in toroidal Bose-Einstein condensates by means of pattern formation
Creators: name: Modugno, M.
name: Tozzo, C.
name: Dalfovo, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We theoretically investigate the dynamic properties of a Bose-Einstein condensate in a toroidal trap. A periodic modulation of the transverse confinement is shown to produce a density pattern due to parametric amplification of phonon pairs. By imaging the density distribution after free expansion one obtains i) a precise determination of the Bogoliubov spectrum and ii) a sensitive detection of quantized circulation in the torus. The parametric amplification is also sensitive to thermal and quantum fluctuations.
description: 4 pages, 4 figures; new figures, revised version to appear as a Rapid Communication in Physical Review A
ANALYSIS COMPETITIVENESS DRUGS OF THE NOOTROPIC GROUP ON PHARMACEUTICAL MARKET OF UKRAINE
Creators: name: Nazarkina, V.
name: Popova, I.
name: Kurylenko Yu.
name: Podkolzina, M.
name: Teterich, N.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: competitiveness
the pharmaceutical market of Ukraine
cerebrovascular disorders

description: The analysis of the market of medicines of group N06BX in Ukraine is carried out. The selected group other psychostimulants and nootropics has a wide range of action and is used in the treatment of many diseases, including cerebrovascular disorders and atherosclerosis, which occupies a leading position in terms of mortality. It was revealed that the prevalence on the market of domestic drugs in the ratio of 63.15%: 36.85%, respectively. The most competitive drugs of the selected group are analyzed and competitiveness coefficients are calculated. It was found that the most competitive drug was Neuro-norms with a coefficient of 1.02.
Comparison of metallic Silicon in clusions in industrial Container glass and laboratory melts
Creators: name: Reisch, Renate
name: Stachel, Dörte
name: Tessmann, Elke
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: Metallic silicon inclusions in glasses obtained from different Container glass companies and from laboratory melts by addition of metallic cuttings (aluminum, magnesium) were examined using light and Scanning electron microscopy The composition of the formed silicon spheres is always similar. The metallic inclusions are composed of silicon with a very small part of fmely distributed iron-Silicon alloys. In amber and green glass chromium, manganese and copper are additionally enriched as further main elements in these alloying phases. Differences in the composition of silicon spheres are due to the dwell time and the concentration of polyvalent ions in the melt.
Bidirectional electro-optic conversion reaching 1% efficiency with thin-film lithium niobate
Creators: name: Xu, Yuntao
name: Sayem, Ayed Al
name: Fan, Linran
name: Wang, Sihao
name: Cheng, Risheng
name: Zou, Chang-Ling
name: Fu, Wei
name: Yang, Likai
name: Xu, Mingrui
name: Tang, Hong X.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Superconducting cavity electro-optics (EO) presents a promising route to coherently convert microwave and optical photons and distribute quantum entanglement between superconducting circuits over long-distance through an optical network. High EO conversion efficiency demands transduction materials with strong Pockels effect and excellent optical transparency. Thin-film Lithium Niobate (TFLN) offers these desired characteristics however so far has only delivered unidirectional conversion with efficiencies on the order of $10^{-5}$, largely impacted by its prominent photorefractive (PR) effect at cryogenic temperatures. Here we show that, by mitigating the PR effect and associated charge-screening effect, the device's conversion efficiency can be enhanced by orders of magnitude while maintaining stable cryogenic operation, thus allowing a demonstration of conversion bidirectionality and accurate quantification of on-chip efficiency. With the optimized monolithic integrated superconducting EO device based on TFLN-on-sapphire substrate, an on-chip conversion efficiency of 1.02% (internal efficiency, 15.2%) is realized. Our demonstration indicates that with further device improvement, it is feasible for TFLN to approach unitary internal conversion efficiency.
GEOMORPHOLOGICAL STRUCTURE OF SOIL COVER RELIEF OF THE VINNYTSIA REGION AS A FACTOR OF THE INTENSITY OF EROSION PROCESSES
Creators: name: Bronnikova, L.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: soil
soil cover
water erosion
fertility
erosion processes

description: The results of studying the features of erosion resistance of soils of Vinnytsia region with regard to the features of geomorphological structure of the terrain (slope steepness) based on the results of recent surveys and outlined the main directions of reducing the intensity of erosion processes given the agro-technological features of the region.
Instanton counting, Macdonald function and the moduli space of D-branes
Creators: name: Awata, Hidetoshi
name: Kanno, Hiroaki
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue the connection of Nekrasov's partition function in the Ωbackground and the moduli space of D-branes, suggested by the idea of geometric engineering and Gopakumar-Vafa invariants. In the instanton expansion of N=2 SU(2) Yang-Mills theory the Nakrasov's partition function with equivariant parameters ε_1, ε_2 of toric action on C^2 factorizes correctly as the character of SU(2)_L \times SU(2)_R spin representation. We show that up to two instantons the spin contents are consistent with the Lefschetz action on the moduli space of D2-branes on (local) F_0. We also present an attempt at constructing a refined topological vertex in terms of the Macdonald function. The refined topological vertex with two parameters of T^2 action allows us to obtain the generating functions of equivariant χ_y and elliptic genera of the Hilbert scheme of n points on C^2 by the method of topological vertex.
description: 33 pages, 2 figures, (v2) minor changes, references added, (v3) Comments and more references added
Stability of Embankments on Clay Foundations
Creators: name: Hopkins, Tommy C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1986
Subjects: subject: Transportation Engineering

description: Ninety-one well-documented geotechnical failures are reviewed. The case studies involved the failure of embankments, footings and load tests, excavated slopes, and natural slopes. Seventy-five of the geotechnical failures had been analyzed using total stress analysis. Sixteen of the case failures had been analyzed using effective stress analysis. Based on a review of these case studies, there are discrepancies between predicted and actual stabilities of geotechnical structures and there is a tendency tu overestimate the factor of safety. Differences that may arise between predicted and actual performances are discussed and examined and guidelines are proposed for evaluating the potential of successfully applying total stress and effective stress analyses. The simple guidelines make use of index tests such as the liquid limit, plastic limit, natural water content, and liquidity index.  With regard to embankments on clay foundations, assumptions commonly made regarding the shear strength of the embankment are discussed. A mathematical model based on embankment cracking is presented in terns of effective stress, although total stress conditions also may be analyzed. The model solution yields a depth of tension crack that is based on the mobilized shear strength parameters. The depth of tension obtained from the model analysis is compatible with the factor of safety. The proposed embankment failure model equations have been programmed for the computer and form an integral part of a newly developed, generalized slope stability computer model and program (HOPK-I). Numerical examples selected from published sources are reanalyzed using the failure model. These results are compared to published results of the selected examples.
Listado referencias - Instrumentos medición autoeficacia matemática Educación Primaria
Creators: name: Sukunza Pagola, Mikel
name: Berciano Alcaraz, Ainhoa
name: MARBÁN, JOSÉ MARÍA
Publisher: name: Zenodo
Year: 2025
Subjects: revisión sistemática de la literatura
Eduación Primaria
Matemáticas

description: Listado referencias sobre revisión sistemática de la literatura.
Lime Stabilization of Pavement Subgrade Soils of Section AA-19 of the Alexandria-Ashland Highway
Creators: name: Hopkins, Tommy C.
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1986
Subjects: subject: Transportation Engineering

description: The purposes of this study were to evaluate the effects of hydrated lime on the soils from Section AA-19 of the Alexandria-Ashland Highway and determine if the engineering properties of the soils from Section AA-19 could be improved by lime stabilization. Soil samples used in the study were obtained by· the Kentucky Transportation Research Program on March 25, 1986. Three bag samples were collected from Section AA-19 (Lewis County, Kentucky) of the Alexandria-Ashland Highway, Stations 1630 (Sample A), 1495 (Sample B), and 1675+50 (Sample C), respectively. Based on a review of the geology of Section AA-19, the three sampling sites are directly underlain by the Crab Orchard Formation.  The study was authorized by contract dated April 4, 1986 (Purchase Order No. ML86-1248), between the Kentucky Transportation Research Program, College of Engineering, University of Kentucky, and the Dravo Lime Company of Maysville, Kentucky. Authorization to proceed with the work was given by Mr. Ward Blakefield of the Dravo Lime Company. The scope and specific engineering services to be performed are outlined in the purchase order contract. Preliminary test results (1) were submitted to the Dravo Lime Company on July 30, 1986.
Ultrasonic roll seam welding for the production of glass/metal compounds
Creators: name: Eifler, Dietmer
name: Roeder, Erwin
name: Schlicker, Uwe
name: Wagner, Jochen
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: The joining technology of glasses and glass-ceramics with metal is growing in importance in view of the increased application possibilities of such Compound parts in the machinery and electronics industries. Α new method has recently gone into competition with the current production methods of these Compounds such as melting, soldering and glueing. This novel method is ultrasonic welding. So far this joining technology has only been applied in ultrasonic spot welding. However, it is n ow possible to manufacture Compounds with a shear strength of up to 50 MP a at low temperatures (< 400°C) in short periods of time (< 1.5 s). To extend the application of ultrasonic welding the Department of Materials Science at the University of Kaiserslautern (Germany) has constructed and put into Operation an ultrasonic roll seam welding machine for the continuous and intermittent joining of glass and glass-ceramics with metal. So far this device has, among other things, been used to join a borosilicate and a soda-lime-silica glass with several kinds of high alloyed steel, an aluminium alloy and the glass sealing alloy KOVAR (NiCo 29 17) with the addition of a thin intermediate layer of aluminium. By means of systematic studies of the parameters feed, welding force and amplitude, that significantly influence the welding process, an optimization of the Compound strength has been achieved.
Chemical biology approaches for in vivo protein kinase substrate identification: PKCε as a model system
Creators: name: Davis, Khalil
Publisher: name: Imperial College London
Year: 2019

description: The protein kinases are a large family of 538 proteins that, through the catalysis of gamma-phosphate transfer from ATP to their substrate proteins, play a central role in almost all biological signalling pathways. As such, knowledge of kinase substrates is critical for understanding cellular signalling pathways and biological processes in general. Aberrant protein kinase signalling resulting from mutation has been implicated in disease, especially in cancer, for which the protein kinase represents the most commonly mutated family of proteins. However, although a select few kinases have been characterised in relatively high detail, the majority of protein kinases are relatively uncharacterised and indeed almost nothing is known about half of protein kinases. This highlights the pressing need for new unbiased and systematic methods for identifying kinase substrates. The aim of the work described in this thesis was to develop a method of identifying kinase substrates in their native cellular environment, using PKC as a model. Two approaches were employed that were designed to enable crosslinking of substrates either to the kinase itself or to compounds bound at the catalytic site of the kinase. The latter approach worked with an analogue sensitive form of PKC-epsilon but was found not to label substrates. In contrast, the direct incorporation of photocrosslinking side chains into PKC-epsilon using genetic codon expansion technology proved productive. In this direct labelling strategy, a site was identified that, when AbK was incorporated, led to crosslinking of endogenous proteins. Mass spectrometry analysis of purified crosslinked complexes led to the identification of a novel PKC-epsilon substrate, SERBP1, which was identified to localise to foci in mitosis in a PKC-epsilon-dependent manner. Finally, the use of an alternative photocrosslinker with a cleavable sidechain enabled the identification of several additional potential PKC-epsilon substrates that merit validation and further investigation. It is likely that the technique described in this thesis will prove to be applicable to other protein kinases, where it will prove to be a useful addition to the current repertoire of substrate identification techniques.
New type of stonewool (HT fibres) with a higli dissolution rate at pH = 4.5
Creators: name: Knudsen, Torben
name: Guldberg, Marianne
name: Christensen, Vermund R.
name: Jensen, Søren Lund
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: Α representative, the HT-3 fibre, of a new type of stonewool (HT fibres), characterized by a relatively high content of a lumina and a relatively low content of silica, has recently been tested in-vivo by Bellmann et al. to have a low biopersistence after intratracheal instilladon in rat lungs. Several advantages of this fibre were found: - a half-time T50 which is 2 respectively 4 times lower than that for the reference fibres glasswool and stonewool (after correcting to 1 µm median diameter), - a better ultimate clearance after 18 months, resulting in 3 % remaining for the HT-3 fibre compared to 32 % for normal stonewool, - an effective clearance of fibres with a diameter < 0.5 µm. Fibres with a diameter belonging to this class are generally thought to be those with the highest potency for tumour formadon. The HT fibres have a relatively low in-vitro dissolution rate at p H = 7.5, similar to that of normal stonewool fibres, but a high in-vitro dissolution rate at pH = 4.5. The explanation of the favourable in-vivo properties of t h e HT-3 fibre is based on the recent investigations of the ability of alveolar macrophages to dissolve certain fibres, coupled with the Observation of the high dissolution rate of the HT fibres at the pH value of 4.5 to 5 prevailing inside the macrophages. All HT fibres have been shown t o have comparable, high dissolution rates at pH = 4.5 to 5.
Investigation of the dissolution of metallic Silicon spheres in a container glass melt
Creators: name: Reisch, Renate
name: Stachel, Dörte
name: Traufelder, Steffi
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: On laboratory scale, metallic silicon spheres obtained from industrial flint glass production and spectroscopically pure silicon were annealed in flint glass, amber glass and green glass cullet melts. The dissolution behavior of sihcon was investigated in the temperature range of 1200 to 1500°C in normal air a nd sulfur dioxide atmosphere. Silicon dissolves by formadon of a thin silicon dioxide layer at the surface of the spheres only at high temperatures and long annealing times. The dissolution of silicon is a process with low reaction rate and a complex reaction mechanism due to interactions of Silicon with oxygen, hydroxide ions and polyvalent ions in the Container glass melt.
title: Rutting and Longitudinal Cracking and Temperature Cracking: A Case Study
title: (US 23, Greenup County, MP 6.0 to 28.8)
titleType: Subtitle
Creators: name: Havens, James H.
name: Sharpe, Gary W.
name: Allen, David L.
name: Hunsucker, David Q.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1986
Subjects: subject: Transportation Engineering

description: US 23, Greenup County, Ashland-South Shore, developed rutting and transverse and longitudinal cracking. The pavement was about 14 years old and had served heavy trucks. Road Rater tests, crack surveys, and various inspections had been made prior to the fall of 1985. Inspection and a report by KTRP led to further evaluation, examination internally by trenching, and additional tests and surveys. This report combines pertinent facts and records. It includes recommendations for overlayment.
Isothermal and isochomal workability of glass melts - Influence of melting history: Minor composition changes of redox State and hydroxyl content - Αstudy of the sensitivity of the cylinder compression method
Creators: name: Brückner, Rolf
name: Yue, Yuanzheng
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: The influence of redox State and hydroxyl concentration on the pure non-Newtonian flow behaviour, on the gross non-Newtonian viscosity, on the stress generation modulus, brittleness, high-temperature tensile strength and on the critical deformation rate of an iron oxide-containing laboratory glass melt with two different melting histories, but with the same main chemical composition, is investigated by means of the cylinder compression method. The comparison of these properties between the oxidized and the reduced glass melt is made not only at equal temperatures but also at equal viscosities in order to distinguish between isothermal and isochomal workability and to examine how sensitive the applied method is. The result is that the reduced melt with a somewhat larger Fe²⁺/F_total ratio and with a larger hydroxyl content has a smaller stiffness and brittleness and therefore, a somewhat better isothermal workability than the oxidized melt. This is valid only for the comparison at equal temperatures. When the comparison is made at equal viscosities, however, the workability - or better the isochomal workability - of the two melts is the same. The reason is that a shift of the Newtonian viscosity is produced by the redox shift and hydroxyl content of the reduced melt to lower values which diminishes with increasing temperature. It is possible to construct master curves with respect to the measured properdes at four temperatures, by which a transfer to the low viscosity range is possible, i.e., one can get the isothermal workability of the glass melts over the whole working range. The measured values of the above-mentioned properties are represented by fitting with recently developed relations which give rise to interesting practical and theoretical conclusions about industrial production optimization and about some structural aspects of stressed melts.
Collective spin dynamics under dissipative spin Hall torque
Creators: name: Tserkovnyak, Yaroslav
name: Maniv, Eran
name: Analytis, James
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Current-induced spin torques in layered magnetic heterostructures have many commonalities across broad classes of magnetic materials. These include not only collinear ferromagnets, ferrimagnets, and antiferromagnets, but also more complex noncollinear spin systems. We develop a general Lagrangian-Rayleigh approach for studying the role of dissipative torques, which can pump energy into long-wavelength magnetic dynamics, causing dynamic instabilities. While the Rayleigh structure of such torques is similar for different magnetic materials, their consequences depend sensitively on the nature of the order and, in particular, on whether there is a net magnetic moment. The latter endows the system with a unipolar switching capability, while magnetically compensated materials tend to evolve towards limit cycles, at large torques, with chirality dependent on the torque sign. Apart from the ferromagnetic and antiferromagnetic cases, we discuss ferrimagnets, which display an intricate competition between switching and limit cycles. As a simple case for compensated noncollinear order, we consider isotropic spin glasses, as well as a scenario of their coexistence with a collinear magnetic order.
description: 5 pages, 2 figures
Mechanical behaviour and environmental stability of continuous fibre-reinforced glass-ceramic matrix composites
Creators: name: West, Grant
name: Taplin, David M. R.
name: Boccaccini, Aldo R.
name: Plucknett, Kevin
name: Lewis, Mike H.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: The mechanical behaviour of three continuous Silicon carbide fibre-reinforced glass-ceramic matrix composites has been investigated at room and high temperatures. Commercially available composites with magnesium aluminosilicate, calcium aluminosilicate and barium magnesium aluminosilicate glass-ceramic matrices were considered. The materials were tested in the as-received and aged (heat-treated in a n oxidizing environment) condition. Four-point bend static tests and fiexural creep, fatigue and creep-fatigue tests were carried out a s well as a small quantity of tensile tests of aged composites. The experimental results have highlighted the importance of the carbon-rich layer at the fibre/matrix interface for obtaining "graceful" failures. At temperatures of 700 to 800 °C oxidative degradation of the interface results in significant strength reduction and a transition to brittle fracture mode. By rapid heat treatment of the materials at 1100°C for 1 h it is possible to seal the fibre ends by forming a silica "plug" which prevents oxygen ingress, retaining the carbon-rich interphase and composite behaviour. The results of the creep and creep-fatigue tests indicate low-cycle loading has a strong influence on the life of components at high temperatures.
Gauge coupling constants as residues of spacetime representations
Creators: name: Saller, Heinrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The gauge coupling constants in the electroweak standard model can be written as mass ratios, e.g. the coupling constant for isospin interactions $g_2^2=2{m_W^2\over m^2}\sim 2({80\over169})^2\sim{1\over 2.3}$ with the mass of the charged weak boson and the mass parameter characterizing the ground state degeneracy. A theory is given which relates the two masses in such a ratio to invariants which characterize the representations of a noncompact nonabelian group with real rank 2. The two noncompact abelian subgroups are operations for time and for a hyperbolicposition space in a model for spacetime, homogeneous under dilation and Lorentz group action. The representations of the spacetime model embed the bound state representations of hyperbolic position space as seen in the nonrelativistic hydrogen atom. Interactions like Coulomb or Yukawa interactions are described by Lie algebra representation coefficients.A quantitative determination of the ratio of the invariants for position and time related operations, determined by the spacetime representation, gives the right order of magnitude for the gauge coupling constants.
description: 49 pages
Shamans
Creators: name: Ochurte, Rufino
name: Mixco, Mauricio J.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: klb

description: See Kiliwa Texts: "When I have Donned My Crest of Stars" (University of Utah Press, 1983), p. 120 for transcription, segmentation, glossing, and translation of these stories.
การพัฒนารูปแบบระบบสารสนเทศการบริหารห่วงโซ่อุปทานอุตสาหกรรมผลิตสินค้าฮาลาลของไทย
Creators: name: อรรถพล จันทร์สมุด
Publisher: name: มหาวิทยาลัยแม่โจ้
Year: 2019
Subjects: การพัฒนารูปแบบระบบสารสนเทศการบริหารห่วงโซ่อุปทาน
อุตสาหกรรมผลิตสินค้าฮาลาลของไทย

description: วารสารแม่โจ้เทคโนโลยีสารสนเทศและนวัตกรรม, 5, 1, 64 ถึง 74
Extended-body motion in black hole spacetimes: What is possible?
Creators: name: Harte, Abraham I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Free-fall is only approximately universal in general relativity. Different extended bodies can fall in different ways, depending on their internal dynamics. Nevertheless, certain aspects of their motion are universal. This paper examines the universal constraints on extended-body motion in vacuum type D spacetimes. Working in the quadrupole approximation, we show that in addition to the (previously-known) constraints imposed by Killing vectors, two components of the gravitational torque must vanish. Furthermore, of the ten components of a body's quadrupole moment, four are found to be irrelevant, two can affect only the force, and the remaining four can affect both forces and torques. As an application, we consider the capabilities of a hypothetical spacecraft which controls its motion by controlling its internal structure. In the Schwarzschild spacetime, such a spacecraft can control its mass, and in doing so, it can stabilize unstable orbits, escape from bound orbits, and more -- all without a rocket.
description: 20 pages, 5 figures, minor changes
Buchrucker, Armin-Ernst: Theologie der evangelischen Abendmahlslieder
Creators: name: Vo.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 38 Nr. 2 (1989): Ökumenische Rundschau, Band 38, Heft 2
Instabilities driven equilibration of the quark-gluon plasma
Creators: name: Mrowczynski, Stanislaw
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Due to anisotropic momentum distributions the parton system produced at the early stage of relativistic heavy-ion collisions is unstable with respect to the magnetic plasma modes. The instabilities isotropize the system and thus speed up the process of its equilibration. The whole scenario of the instabilities driven isotropization is reviewed.
description: review, 21 pages, new section on various approaches to QGP equilibration
Glass and polymer: Wetting and adhesion
Creators: name: Lellig, Klaus
name: Ondreacek, Gerhard
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: The use of glass-polymer Compounds is on the advance as for the finishing of glass products and for the development of materials to be used in new applications. The results from Wetting and adhesion experiments of thermoplastic polymers on glass surfaces without coupling agents are discussed. The attempt to use the thermodynamic work of adhesion as a measure of adhesion proved to be unsuccessful, as it is difficult to characterize glass according to surface energy. Contact angle measurements of melted polymers on glass surfaces show that the type of Silicate glass applied does not influence the contact angle. The Wetting is controlled by the viscosity of the polymer melt, and the kinetics follows a power law. The fact that non-polar polymers show a low level of adhesion on glass surfaces is based upon results of strength measurements of Compounds between glass and polymers. Apart from polarity, mechanical and thermal properties of polymers play a decisive role. Great importance is attributed to the ability to relieve stress, since the observed cohesion failure inside the glass is caused by brittle polymers. Adhesion, however, is insignificantly dependent on glass composition. If the Joint is not achieved by polymer melting but by a Solution of the polymer, the surface property (acid-base affinity) of the glass becomes a critical factor, and adhesion may fall completely.
Mesh collapse compression
Creators: name: Isenburg, Martin
Publisher: name: University of British Columbia
Year: 2009

description: Efficiently encoding the topology of triangular meshes has recently been the subject of intense study and many representations have been proposed. The sudden interest in this area is fueled by the emerging demand for transmitting 3D data sets over the Internet (e.g. VRML). Since transmission bandwidth is a scarce resource, compact encodings for 3D models are of great advantage. In this work we present novel algorithms for encoding the topology of triangular and quadrilateral meshes. Our encoding algorithms are based on the edge contract operation, which has been used extensively in the area of mesh simplification, but not for efficient mesh topology compression. Furthermore we present a simpler decoding algorithm for Edgebreaker encoded triangle meshes.
Quantitative Analysis of Shock Wave Dynamics in a Fluid of Light
Creators: name: Bienaimé, T.
name: Isoard, M.
name: Fontaine, Q.
name: Bramati, A.
name: Kamchatnov, A. M.
name: Glorieux, Q.
name: Pavloff, N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the formation of a dispersive shock wave in a nonlinear optical medium. We monitor the evolution of the shock by tuning the incoming beam power. The experimental observations for the position and intensity of the solitonic edge of the shock, as well as the location of the nonlinear oscillations are well described by recent developments of Whitham modulation theory. Our work constitutes a detailed and accurate benchmark for this approach. It opens exciting possibilities to engineer specific configurations of optical shock wave for studying wave-mean flow interaction.
description: 6 pages, 4 figures, Supplemental Material
Deportation - dismantling - expropriation Jenaer Glaswerk under Soviet command
Creators: name: Steiner, Jürgen
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: Fifty years ago, in October 1946, the Soviet occupation forces issued two Orders which had far-reaching consequences for Jenaer Glaswerk. The first entailed the conscription of 14 glass speciahsts to be sent to work in the Soviet Union for five years, and the second called for the parent works in Jena to be dismantled. After the Americans had deported 41 members of the professional and managerial staff in June 1945 ("The Odyssey of 41 Glassmakers"), events in October 1946 ushered in probably the bitterest chapter in the history of the Company . The expropriation, without compensation, of the works in 1948 and their conversion to a stateowned factory (volkseigener Betrieb) was the absolute low point. Under the exceedingly difficult pohtical and economic conditions prevailing at the time, combined with staff-related problems, the employees of Jenaer Glaswerk went to great effort to rebuild the works. The events of this period resulted in a split-up into two companies for more than forty years.
Dynamical tunneling in mushroom billiards
Creators: name: Bäcker, A.
name: Ketzmerick, R.
name: Löck, S.
name: Robnik, M.
name: Vidmar, G.
name: Höhmann, R.
name: Kuhl, U.
name: Stöckmann, H. -J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the fundamental question of dynamical tunneling in generic two-dimensional Hamiltonian systems by considering regular-to-chaotic tunneling rates. Experimentally, we use microwave spectra to investigate a mushroom billiard with adjustable foot height. Numerically, we obtain tunneling rates from high precision eigenvalues using the improved method of particular solutions. Analytically, a prediction is given by extending an approach using a fictitious integrable system to billiards. In contrast to previous approaches for billiards, we find agreement with experimental and numerical data without any free parameter.
description: 4 pages, 4 figures
Papandreou, Damaskinos: L'Ancien Testament dans l'Eglise
Creators: name: Schütz, Georg
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 38 Nr. 2 (1989): Ökumenische Rundschau, Band 38, Heft 2
Numerical Simulation of thermal convection of a glass melt in a cylindrical induction furnace
Creators: name: Schiff, Victor Kurtovich
name: Zamyatin, Andrey Nikolaevich
name: Zhilin, Alexander Alexanderovich
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1996
Subjects: subject: 660

description: A mathematical model of heat convection in a cylindrical induction furnace with water-cooled bottom and walls is presented. The model is constructed on the basis of the Solution of thermal conductivity, continuity, and momentum equations in the Boussinesq- Oberbek approximation. Different melting conditions are simulated by Variation of thermal boundary conditions. Investigations of convection currents in glass melts are carried out for model glasses of two types: a) with low effective thermal conductivity (i.e. k_eff = 5 W / ( m * K ) ) and b) with high effective thermal conductivity (i.e. k_eff = 150 W / (m * K)). The model demonstrates strong heterogeneities of the temperature field in the melt and a sharp temperature j u m p at the interface between melt and water-cooled furnace wall, which can lead to the formation of a solidified layer.
Kommunikationsprobleme zwischen Landwirtschaft und Naturschutz in Deutschland – eine Diskursanalyse
Creators: name: Menauer, Verena
name: Schweiger, Wolfgang
Publisher: name: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft
Year: 2022

description: Kommunikation gilt als zentrale Voraussetzung, um Naturschutz langfristig in der Landwirtschaft zu verankern. Die langanhaltenden, teils heftigen Auseinandersetzungen zwischen Akteuren aus beiden Bereichen in Deutschland zeigen jedoch, dass es vor allem in der öffentlichen Kommunikation deutliche Defizite gibt. Ziel der Studie ist es, die bestehenden Probleme mit Hilfe einer qualitativen Diskursanalyse zu identifizieren, zu klassifizieren und detailliert zu beschreiben. Untersucht werden 165 Beiträge vier verschiedener Akteursgruppen (Nachrichtenjournalismus, Fachjournalismus, interessengeleitete Akteure, staatliche Akteure) in Deutschland. Basierend auf der Forschung zu öffentlichen Diskursen wird zwischen Problemen auf Input- und Throughput-Ebene unterschieden. Auf der Input-Ebene zeigt sich, dass (1) Akteure nicht immer die notwendige Offenheit mitbringen, um sich mit anderen verständigen zu können und (2) nicht alle Themen, Ereignisse und Darstellungsperspektiven die gleichen Chancen haben, diskutiert zu werden. Auf der Ebene des Throughputs zeigt sich, dass Akteure (1) ihre Positionen nicht immer ausreichend argumentativ untermauern, (2) nicht immer ausreichend auf Themen und Argumente der Gegenseite eingehen und sich (3) teilweise unangemessen äußern. Die genannten Probleme treten teils einzeln, teils in Kombination auf. Künftige Studien sollten sich mit der Wahrnehmung und Bewertung der identifizierten Probleme durch die betroffenen Akteursgruppen beschäftigen.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Aktuelle Beiträge
การพัฒนาแบบจำลองโลจิสติกส์เพื่อจัดการศึกษาสำหรับมหาวิทยาลัย
Creators: name: อรรถพล จันทร์สมุด
Publisher: name: มหาวิทยาลัยแม่โจ้
Year: 2019
Subjects: การพัฒนาแบบจำลองโลจิสติกส์
การจัดการศึกษาสำหรับมหาวิทยาลัย

description: วารสารแม่โจ้เทคโนโลยีสารสนเทศและนวัตกรรม, 5, 1, 49 ถึง 63