cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of Railway Track Stiffness Variation and Its Influence
Creators: name: Abreham, Demissie
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Railway track stiffness is a basic parameter of track design which influences the bearing capacity and the dynamic behavior of passing vehicles. In particular, track geometry quality and the life of track components. The stiffness definition must include inelastic and non-linear behavior of the supper structure and substructure elements as well as the existence of the stiffness under dynamic load. In most case track stiffness is a function of track superstructure and substructure material properties. In this paper the influence of track component stiffness variation by using time and frequency domain of FEM (ABAQUS software) analyzed and discussed on the results observed. The Modeling analysis of track stiffness variation depends on the track component (rail-pads, sleeper, ballast and subgrade) stiffness variation and the Results for each track component stiffness variations. Interactive forces, track component displacements, Velocities and acceleration were presented. The analysis consider the influence of rail-pad stiffness, ballast stiffness, sleeper spacing, train speed and subgrade material on track structures. During operation and moving of the freight trains falling of small particles over the ballast layer causes an increase of stiffness in the layer of ballast and gradual deterioration of ballast effect on size of ballast grade and forming powder due to friction exists between stones rubbing together, which reduce the stiffness of ballast. Using the software ABAQUS found that, decrease in sleeper spacing and increases in ballast young's modulus, ballast depth, sub grade young's modulus and rail moment of inertia increases the track stiffness at all. In general, relatively high track stiffness is beneficial as it provides sufficient track resistance to applied loads and results in decreased track deflection, which reduces track deterioration. On the other hand, very high track stiffness leads to increased dynamic forces in the wheel rail interfaces as well as on the sleepers and ballast which can cause wear and fatigue of track components.
Spectropolarimetry of superluminous supernovae: insight into their geometry
Creators: name: Inserra, C.
name: Bulla, M.
name: Sim, S. A.
name: Smartt, S. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first spectropolarimetric observations of a hydrogen-free superluminous supernova at z=0.1136, namely SN 2015bn. The transient shows significant polarization at both the observed epochs: one 24 days before maximum light in the rest-frame, and the subsequent at 27 days after peak luminosity. Analysis of the Q-U plane suggests the presence of a dominant axis and no physical departure from the main axis at either epoch. The polarization spectrum along the dominant axis is characterized by a strong wavelength dependence and an increase in the signal from the first to the second epoch. We use a Monte Carlo code to demonstrate that these properties are consistent with a simple toy model that adopts an axi-symmetric ellipsoidal configuration for the ejecta. We find that the wavelength dependence of the polarisation is possibly due to a strong wavelength dependence in the line opacity, while the higher level of polarisation at the second epoch is a consequence of the increase in the asphericity of the inner layers of the ejecta or the fact that the photosphere recedes into less spherical layers. The geometry of the superluminous supernova results similar to those of stripped-envelope core collapse SNe connected with GRB, while the overall evolution of the ejecta shape could be consistent with a central engine.
description: 12 pages, 7 figures, accepted by ApJ, very minor additions from previous versions
Defluidization : a study of the influence of liquids and their properties on gas fluidized bed behaviour
Creators: name: McLaughlin., Loretta Jayne
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Brief an [Johann Jakob] Breitinger
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1764

description: Über ein demnächst von ihm erscheinendes Werk über die instrumentalen Teile der menschlichen und der philosophischen Erkenntnis.
description: von [Johann Heinrich] Lambert
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Druck: Lambert, Johann Heinrich. - Joh. Heinrich Lamberts deutscher gelehrter Briefwechsel / herausg. von Joh. Bernoulli. - Berlin 1781, 1, S.383-388
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Measurements of $ψ(2S)$ and $X(3872) \to J/ψπ^+π^-$ production in $pp$ collisions at $\sqrt{s} = 8$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm states $X(3872)$ and $ψ(2S)$, in the decay mode $J/ψπ^+π^-$, measured using 11.4 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} = 8$ TeV by the ATLAS detector at the LHC. The ratio of cross-sections $X(3872)/ψ(2S)$ is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of $X(3872)$ and $ψ(2S)$. Assuming independent single effective lifetimes for non-prompt $X(3872)$ and $ψ(2S)$ production gives $R_B = \frac{\mathcal{B}(B \rightarrow X(3872)\textrm{ + any}) \mathcal{B}(X(3872 \rightarrow J/ψπ^+π^-)}{\mathcal{B}(B \rightarrow ψ(2S)\textrm{ + any}) \mathcal{B}(ψ(2S) \rightarrow J/ψπ^+π^-)} = (3.95 \pm 0.32 \mathrm{(stat)} \pm 0.08\mathrm{(sys)}) \times 10^{-2}$, while separating short- and long-lived contributions, assuming that the short-lived component is due to $B_c$ decays, gives $R_B = (3.57 \pm 0.33\mathrm{(stat)} \pm 0.11\mathrm{(sys)}) \times 10^{-2}$, with the fraction of non-prompt $X(3872)$ produced via $B_c$ decays for $p_\mathrm{T}(X(3872)) > 10$ GeV being $(25 \pm 13\mathrm{(stat)} \pm 2\mathrm{(sys)} \pm 5\mathrm{(spin)})\%$. The distributions of the dipion invariant mass in the $X(3872)$ and $ψ(2S)$ decays are also measured and compared to theoretical predictions.
description: 42 pages in total, author list starting page 26, 10 figures, 8 tables. Submitted to JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2015-03/
Brief an [Henri Alexandre] de Catt
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1765

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Enhanced ductility in wrought AA6016 due to grain refinement by equal channel angular pressing with back-pressure
Creators: name: Mckenzie., Peter William James
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Identifying and Optimizing Suitable Source of Ballast Material (Case Study on Sebeta-Meiso-Dewalle Railway Project)
Creators: name: Biruk, Gebremedhin
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Previously great attention has been given for the quality of track superstructure to improve the general technology of the railway scheme. But frequent research on track supporting materials show a good result which improves the general overall performance; safe ride with smooth wheel-rail steering ,high speed, minimum initial cost and accepted tolerance with respect to voice, and vibration .Generally positive whole life cycle analysis are the basic concern on the railway technology. And such a good quality in strength and life cycle of railway track component contribute high for the performance of the general track structure in different angles. In Ethiopia, on the new projects of railway; ballast as a basic constitute and determinant part of the selected ballistic electrified track; many researches not yet done in maximizing its efficiency on the coming project. And General selection of uneconomical quarry sites which is not located on the logical acceptable radius of the project , stated as the core problem of the thesis and their respected cost variation they experienced on the project studied in depth. In order to elaborate it , case study is selected on recently undergoing Ethio -Djibouti railway project of section Sebeta - Meiso ; two uneconomical quarry sites (Adama-Awash) selected by the contractor which are located out of the logical economic radius pointed down. The aim of this thesis is to access and study many different aspects which affect the general selection of the ballast materials; exploring additional quarry site in between Adama and Awash quarry sites and came with solution with minor blending with neighboring quarry to meet the required standard engineering properties. Finally this thesis finds alternative and reasonable solution of quarry configuration (Adama- Arole-Awash) after detailed economic evaluation and acceptable laboratorial results which experience high cost minimization than currently selected quarry site configuration (Adama- Awash) by the contractor.
The conversion of coal-N during the gasification of coal in oxygen and steam
Creators: name: McKenzie., Lachlan J.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Brief an [Nicolas] Béguelin
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1771

description: von [Johann Heinrich] Lambert
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
title: The Gravity of Warped Throats: de Sitter vacua and Gravitational Waves from Type IIB string theory
Creators: name: Valeixo Bento, Bruno
Publisher: name: University of Liverpool Repository
Year: 2023

description: In this thesis we discuss challenges and opportunities arising from warping the extra dimensions of string theory. After reviewing the required background (including the essentials of Type IIB string theory; flux compactifications; conifolds, warping, and the Klebanov-Strassler and GKP solutions; and the KKLT and LVS proposals) we will discuss de Sitter solutions in warped flux compactifications. We revisit some strongly-warped solutions, present a new solution in a weakly-warped regime and discuss the advantages of weak warping. We then consider the robustness of the new solution in the presence of subleading corrections to the scalar potential. We also explore the difficulties of realising alternative quintessence models as quasi-de Sitter solutions, showing in particular that the generic behaviour of the (single field) scalar potential arising for different types of string theory moduli does not allow for a slow-roll accelerated expansion at the tail of a runaway. We then take the first steps in understanding the effects of warping in gravitational wave signatures of extra dimensions. By considering the tower of Kaluza-Klein spin-2 states arising from a warped compactification of Type IIB string theory, we study the effects of warping on their masses and wavefunction profiles, which we then use to compute corrections to the Newtonian potential that one can compare with current constraints on fifth forces. This allows us to combine theoretical consistency constraints on the parameter space with the range of parameters experimentally excluded, thereby providing a direct connection between string theory quantities and observations. Although a careful study of gravitational wave signals is left for future work, we briefly outline how these results directly apply in that context and suggest which sources might be more promising for future detection.
Brief an [Jean Le Rond] d'Alembert
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1769

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Constraining dust properties in Circumstellar Envelopes of C-stars in the Small Magellanic Cloud: optical constants and grain size of Carbon dust
Creators: name: Nanni, Ambra
name: Marigo, Paola
name: Groenewegen, Martin A. T.
name: Aringer, Bernhard
name: Girardi, Léo
name: Pastorelli, Giada
name: Bressan, Alessandro
name: Bladh, Sara
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new approach aimed at constraining the typical size and optical properties of carbon dust grains in Circumstellar envelopes (CSEs) of carbon-rich stars (C-stars) in the Small Magellanic Cloud (SMC). To achieve this goal, we apply our recent dust growth description, coupled with a radiative transfer code to the CSEs of C-stars evolving along the TP-AGB, for which we compute spectra and colors. Then we compare our modeled colors in the near- and mid-infrared (NIR and MIR) bands with the observed ones, testing different assumptions in our dust scheme and employing several data sets of optical constants for carbon dust available in the literature. Different assumptions adopted in our dust scheme change the typical size of the carbon grains produced. We constrain carbon dust properties by selecting the combination of grain size and optical constants which best reproduces several colors in the NIR and MIR at the same time. The different choices of optical properties and grain size lead to differences in the NIR and MIR colors greater than two magnitudes in some cases. We conclude that the complete set of observed NIR and MIR colors are best reproduced by small grains, with sizes between $\sim$0.035 and $\sim$0.12~$μ$m, rather than by large grains between $\sim0.2$ and $0.7$~$μ$m. The inability of large grains to reproduce NIR and MIR colors seems independent of the adopted optical data set. We also find a possible trend of the grain size with mass-loss and/or carbon excess in the CSEs of these stars.
description: 23 pages, 22 fugures
Economical Span Combination and Section for A Three Span Continuous Post-Tensioned Concrete Railway Bridge
Creators: name: Dereje, Gudeta
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Significant traffic and congestion across urban areas, as well as waterways, create a demand for long-span bridges. The construction of these longer spans plays a critical role in the development of modern infrastructure due to safety, environmental, and economic reasons. A variety of bridge construction practices have been observed over the years. Planning, design and construction techniques are revised and refined to satisfy several parameters including feasibility, ease of construction, safety, maintainability, and economy. In Ethiopia, Reinforced Concrete bridges are commonly used for highways because of their ease of construction, availability of construction materials, low construction cost, etc. The bridges being built using reinforced concrete are most commonly used for full length, simply supported spans. However, there has been a growing need in the transportation sector to build bridges with longer spans, for instance, to construct elevated carriageways (for railways) in congested urban areas due to limited spaces and right of way. The ordinary reinforced concrete bridges for extending span ranges with incremental variations in the materials and conventional design procedures often result in relatively small increases in span range due to limited strengths and excessive deflections. These challenges would dictate to search for alternative materials and design philosophy, i.e. the Prestressed Concrete. Consequently, prestressed post-tensioned concrete continuous girder bridges will be discussed in detail in this research using different sections. This thesis has assessed the cost-effectiveness (economic feasibility) of a three span continuous post-tensioned concrete railway bridge superstructure using Box and T-Girder sections for different span combinations. Summary of the results has showed that the economical span combination of a three span continuous post-tensioned railway bridge with a span of 100.00m is found to be 32.00 – 36.00 – 32.00m (L – 1.13L - L) for Box Girder, and 29.00 – 42.00 – 29.00m (L – 1.45L – L) for T–Girder. The study has also revealed that box girder sections are economical than the T-girder sections for a three span continuous post-tensioned railway bridge with a span of 100.00m.
A 10-Approximation of the π/2 -MST
Creators: name: Biniaz, Ahmad
name: Daliri, Majid
name: Moradpour, Amir Hossein
Publisher: name: Journal of Computational Geometry
Year: 2023

description: Bounded-angle spanning trees of points in the plane have received considerable attention in the context of wireless networks with directional antennas. For a point set P in the plane and an angle α, an α-spanning tree (α-ST) is a spanning tree of the complete Euclidean graph on P with the property that all edges incident to each point p ∈ P lie in a wedge of angle α centered at p. The α-minimum spanning tree (α-MST) problem asks for an α-ST of minimum total edge length. The seminal work of Anscher and Katz (ICALP 2014) shows the NP-hardness of the α-MST problem for α = 2π/ 3 , π and presents approximation algorithms for α = π/2, 2π/3, π. In this paper we study the α-MST problem for α = π/2 which is also known to be NP-hard. We present a 10-approximation algorithm for this problem. This improves the previous best known approximation ratio of 16.
description: Journal of Computational Geometry, Vol. 14 No. 1 (2023)
The Gromov-Hausdorﬀ distance between ultrametric spaces: its structure and computation
Creators: name: Mémoli, Facundo
name: Smith, Zane
name: Wan, Zhengchao
Publisher: name: Journal of Computational Geometry
Year: 2023

description: $\DeclareMathOperator{\ugh}{u_\mathrm{GH}}\DeclareMathOperator{\dgh}{d_\mathrm{GH}}$The Gromov-Hausdorff distance ($d_\mathrm{GH}$) provides a natural way of quantifying the dissimilarity between two given metric spaces. It is known that computing $d_\mathrm{GH}$ between two finite metric spaces is NP-hard, even in the case of finite ultrametric spaces which are highly structured metric spaces in the sense that they satisfy the so-called strong triangle inequality. Ultrametric spaces naturally arise in many applications such as hierarchical clustering, phylogenetics, genomics, and even linguistics. By exploiting the special structures of ultrametric spaces, (1) we identify a one parameter family $\{d^{(p)}_{\mathrm{GH}} \}_{p\in[1,\infty]}$ of distances defined in a flavor similar to the Gromov-Hausdorff distance on the collection of finite ultrametric spaces, and in particular $d^{(1)}_{\mathrm{GH}} =\dgh$. The extreme case when $p=\infty$, which we also denote by $\ugh$, turns out to be an ultrametric on the collection of ultrametric spaces. Whereas for all $p\in[1,\infty)$, $d^{(p)}_{\mathrm{GH}}$ yields NP-hard problems, we prove that surprisingly $u_\mathrm{GH}$ can be computed in polynomial time. The proof is based on a structural theorem for $\ugh$ established in this paper; (2) inspired by the structural theorem for $u_\mathrm{GH}$, and by carefully leveraging properties of ultrametric spaces, we also establish a structural theorem for $d_\mathrm{GH}$ when restricted to ultrametric spaces. This structural theorem allows us to identify special families of ultrametric spaces on which $\dgh$ is computationally tractable. These families are determined by properties related to the doubling constant of metric space. Based on these families, we devise a fixed-parameter tractable (FPT) algorithm for computing the exact value of $\dgh$ between ultrametric spaces. We believe ours is the first such algorithm to be identified.
description: Journal of Computational Geometry, Vol. 14 No. 1 (2023)
Diffractive and non-diffractive wounded nucleons and final states in pA collisions
Creators: name: Bierlich, Christian
name: Gustafson, Gösta
name: Lönnblad, Leif
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the state-of-the-art of Glauber-inspired models for estimating the distribution of the number of participating nucleons in pA and AA collisions. We argue that there is room for improvement in these models when it comes to the treatment of diffractive excitation processes, and present a new simple Glauber-like model where these processes are better taken into account. We also suggest a new way of using the number of participating, or wounded, nucleons to extrapolate event characteristics from pp collisions, and hence get an estimate of basic hadronic final-state properties in pA collisions, which may be used to extract possible nuclear effects. The new method is inspired by the Fritiof model, but based on the full, semi-hard multiparton interaction model of Pythia 8.
description: 50 pages, 13 figures
Brief an [Nicolas] Béguelin
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1764

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Average activity of excitatory and inhibitory neural populations
Creators: name: Roulet, Javier
name: Mindlin, Bernardo Gabriel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We develop an extension of the Ott-Antonsen method that allows obtaining the mean activity (spiking rate) of a population of excitable units. By means of the Ott-Antonsen method, equations for the dynamics of the order parameters of coupled excitatory and inhibitory populations of excitable units are obtained, and their mean activities are computed. Two different excitable systems are studied: Adler units and theta neurons. The resulting bifurcation diagrams are compared to those obtained from studying the phenomenological Wilson-Cowan model in some regions of the parameter space. Compatible behaviors, as well as higher dimensional chaotic solutions, are observed. We study numerical simulations to further validate the equations.
description: 18 pages, 7 figures, accepted for publication in Chaos: An Interdisciplinary Journal of Nonlinear Science
The Stages of Life in the Jungian Perspective: A Photo Elicitation Case Study
Creators: name: Morbach, Ana Carolina Barata
name: Pedroso, Janari Da Silva
Publisher: name: Journal of Clinical & Developmental Psychology
Year: 2022

description: Background: This single case study examined a 63-year-old man's perceptions of his life course and aging process based on a photo elicitation interview. The basis of the data analysis was the theoretical framework of Carl Gustav Jung's analytical psychology. Methods: The interview was conducted using five photos selected by the subject. Each photo represented different phases and helped to understand his biography. We have elaborated five thematic axes related to the participant's account: i) childhood, paradise lost; ii) adolescence, seeing time; iii) adulthood, time of action; iv) midlife, consolidation period; and v) old age, the synthesis. Results: The qualitative findings were consistent with Jung’s ideas about the role of life stages in psychological development. Looking at photos evoked detailed memories and clarified the importance of each phase of life for personality development. The interview showed that there is a continuity of development in old age. Conclusions: Photo elicitation interviews can be useful for both psychological research and clinical practice. This technique enables the interviewer to adopt a non-directive attitude, facilitates the recall of memories and promotes the projection of inner states onto the photographic images.
description: Journal of Clinical & Developmental Psychology, Online First Articles
Measurement and modelling of growth and hydrologic performance of plantations on hill-slopes
Creators: name: McJannet., David L.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Design and Performance Evaluation of Biomass Gasifier Stove
Creators: name: Shiferaw, Yohannes
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: With respect to global issues of sustainable energy and reduction in greenhouse gases, biomass energy as one of the key sources of renewable energy is getting increased attention as a potential source of energy in the future. This work has been carried out to develop, design and manufacture an applicable type biomass gasifier stove for the production of producer gas using locally available biomass fuels like bamboo, eucalyptus and prosopies Juliflora. The gasifire is produced and tested on three trial test runs by conducted caloric value, moisture content and ash content at dry base of each biomass is measure, and is conducted at different time with bamboo, eucalyptus and prosopies Juliflora biomass feeding. First batch fed gasifier reactor having an internal diameters of 39cm was designed and fabricated, operating period of 25-35min, amount of biomass fuel consumed of 4.5kg, temperature at various points of 560 – 7350C were monitored and analyzed. Important parameter such as: manufacturing materials and technique, operation, fuel type, smoke and primary and secondary air inlet were evaluated using water boiling test and controlled cooking test methods by actually boil and cooking food. The results obtained from this study shows that the gasifier performance and operating conditions are good with thermal efficiency around 31.8%. So the out put can provides modern energy services for basic needs and productive applications in the areas. Key words: Biomass, gasification, producer gas, fuel efficiency, ash.
Brief an [Nicolas] Béguelin
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1769

description: von [Johann Heinrich] Lambert
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Effect of Strategic Sourcing on Organizational Performance: The case of MOHA Soft Drinks Industry S.C.
Creators: name: Tesfaye, Binyam
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The purpose of this study is to examine effect of strategic sourcing on organizational performance, identify the gap, and to recommend improvement areas in the case of MOHA Soft Drinks Industry SC. In this study strategic sourcing is evaluated by supplier development, long term supplier relationship, effective procurement plan, and communication. Both descriptive and explanatory research design is employed. Primary data was collected from employees of MOHA Soft Drinks Industry SC. through structured questionnaires. Out of a total of 102 questionnaires distributed, only 87 (85.2%) complete responses were returned. Data were analyzed through descriptive statistical and inferential analysis methods. Employees of MOHA Soft Drinks Industry SC have agreed with supplier development, long term supplier relationship, effective procurement plan, and communication aspects of Strategic Sourcing practices of the company. From moderate to strong positive and significant correlation/relationship is observed between strategic sourcing and organizational performance. The multiple regression analysis results indicated that, unlike long term supplier relationship, the three strategic sourcing dimensions (supplier development, effective procurement plan, and communication) have positive and significant effect on organizational performance. Furthermore, 67.8% change in organizational performance is explained by those significant strategic sourcing dimensions. Finally, the study recommended MOHA Soft Drinks Industry SC has to reassess its long term supplier relationship and is suggested to improve its relationship with suppliers from simply buy-sale relationship to a modern supply chain relationship through establishing strategic or long term supplier relationship and continuous information sharing in order to minimize supply uncertainty which resulted in demand and supply mismatch
Brief an [Jean Le Rond] d'Alembert
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1773

description: von [Johann Heinrich Lambert]
description: Bl.11r unten und Bl.11v: eigenhändige Ergänzungen
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
The Stern-Gerlach Experiment Revisited
Creators: name: Schmidt-Böcking, Horst
name: Schmidt, Lothar
name: Lüdde, Hans Jürgen
name: Trageser, Wolfgang
name: Sauer, Tilman
Publisher: name: arXiv
Year: 2016
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The Stern-Gerlach-Experiment (SGE) of 1922 is a seminal benchmark experiment of quantum physics providing evidence for several fundamental properties of quantum systems. Based on today's knowledge we illustrate the different benchmark results of the SGE for the development of modern quantum physics and chemistry. The SGE provided the first direct experimental evidence for angular momentum quantization in the quantum world and thus also for the existence of directional quantization of all angular momenta in the process of measurement. It measured for the first time a ground state property of an atom, it produced for the first time a `spin-polarized' atomic beam, it almost revealed the electron spin. The SGE was the first fully successful molecular beam experiment with high momentum-resolution by beam measurements in vacuum. This technique provided a new kinematic microscope with which inner atomic or nuclear properties could be investigated. The original SGE is described together with early attempts by Einstein, Ehrenfest, Heisenberg, and others to understand directional quantization in the SGE. Heisenberg's and Einstein's proposals of an improved multi-stage SGE are presented. The first realization of these proposals by Stern, Phipps, Frisch and Segrè is described. The set-up suggested by Einstein can be considered an anticipation of a Rabi-apparatus. Recent theoretical work is mentioned in which the directional quantization process and possible interference effects of the two different spin states are investigated. In full agreement with the results of the new quantum theory directional quantization appears as a general and universal feature of quantum measurements. One experimental example for such directional quantization in scattering processes is shown. Last not least, the early history of the `almost' discovery of the electron spin in the SGE is revisited.
description: 50pp, 17 figs
Axionic extension of the Einstein-aether theory
Creators: name: Balakin, Alexander B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the Einstein-aether theory to take into account the interaction between a pseudoscalar field, which describes the axionic dark matter, and a time-like dynamic unit vector field, which characterizes the velocity of the aether motion. The Lagrangian of the Einstein-aether-axion theory includes cross-terms based on the axion field and its gradient four-vector, on the covariant derivative of the aether velocity four-vector, and on the Riemann tensor and its convolutions. We follow the principles of the Effective Field theory, and include into the Lagrangian of interactions all possible terms up to the second order in the covariant derivative. Interpretation of new couplings is given in terms of irreducible parts of the covariant derivative of the aether velocity, namely, the acceleration four-vector, the shear and vorticity tensors, and the expansion scalar. A spatially isotropic and homogeneous cosmological model with dynamic unit vector field and axionic dark matter is considered as an application of the established theory; new exact solutions are discussed, which describe models with a Big Rip, Pseudo Rip and de Sitter-type asymptotic behavior.
description: 15 pages, 0 figures, accepted for publication in Physical Review D
Brief an [Karl Theophil Guichard]
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1764

description: Über gewisse industriell verwertbare Forschungen von Lambert, für die der König sich interessiert.
description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Simulation studies of a personal rapid transit interchange
Creators: name: McGinley., Francis Joseph Patrick
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Mass Housing Neighbourhoods and Urban Commons
Creators: name: Dragutinovic, Anica
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2023

description: The neglect of significance, deterioration and consequent devaluation of the post-war mass housing neighbourhoods are major challenges, both in the field of heritage conservation and management and in urban planning and design. The reasons for their deterioration are different, and interlinked with the socio-cultural discourse, as well as the spatial characteristics of these neighbourhoods. This doctoral research addresses the challenges of those neighbourhoods, focusing on New Belgrade Blocks, as one of the largest modernist post-war mass housing areas in Europe. The case is particularly important for the discourse on mass housing and ‘ordinary’ heritage management, as it encapsulates concepts, policies and practices developed in Yugoslavia, which are relevant to the contemporary discussions on community-driven approaches for urban planning and governance and participation in heritage studies. The doctoral thesis presents this legacy and reveals causalities and relations of spatial and socio-political aspects, policies, but also planning and design principles. Furthermore, it empirically studies and evaluates the blocks in the contemporary context, with the society (involving citizens), and within the current legal and organisational conditions. Eventually, it develops a framework for enhancement of the blocks, addressing the current and future societal and users’ needs, while preserving the identity and values of the blocks. The doctoral thesis provides different findings and perspectives, contributing to the current knowledge on integrated conservation, urban planning and governance of urban heritage, and in particular mass housing neighbourhoods. It shows co- dependence of those fields and offers an integrative and cross-disciplinary approach.
description: A+BE | Architecture and the Built Environment, No. 15 (2023): Mass Housing Neighbourhoods and Urban Commons
Brief an [Jean Le Rond] d'Alembert
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1771

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Johann Bernhard] Basedow
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1765

description: von [Johann Heinrich Lambert]
description: Eigenhändige Abschrift
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Druck: Lambert, Johann Heinrich. - Joh. Heinrich Lamberts deutscher gelehrter Briefwechsel / herausg. von Joh. Bernoulli. - Berlin 1782, 2, S.97-99
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Nicolas] Béguelin
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1771

description: von [Johann Heinrich] Lambert
description: Bl.32r unten: Autograph
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Nicolas] Béguelin
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1770

description: von [Johann Heinrich] Lambert
description: Nie abgesandte Ausfertigung
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Jean Le Rond] d'Alembert
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1728

description: von [Johann Heinrich Lambert]
description: Fragment, Ende des Briefes fehlt
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an [Gregorio] Fontana
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1776

description: von [Johann Heinrich Lambert]
description: Enthält eigenhändige Ergänzungen
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Cohen Lenstra Heuristics for Étale Group Schemes and Symplectic Pairings
Creators: name: Lipnowski, Michael
name: Tsimerman, Jacob
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We generalize the Cohen-Lenstra heuristics over function fields to étale group schemes $G$ (with the classical case of abelian groups corresponding to constant group schemes). By using the results of Ellenberg-Venkatesh-Westerland, we make progress towards the proof of these heuristics. Moreover, by keeping track of the image of the Weil-pairing as an element of $\wedge^2G(1)$, we formulate more refined heuristics which nicely explain the deviation from the usual Cohen-Lenstra heuristics for abelian $\ell$-groups in cases where $\ell\mid q-1$; the nature of this failure was suggested already in the works of Garton, EVW, and others. On the purely large random matrix side, we provide a natural model which has the correct moments, and we conjecture that these moments uniquely determine a limiting probability measure.
Magneto photoluminescence measurements of tungsten disulphide monolayers
Creators: name: Kuhnert, Jan
name: Rahimi-Iman, Arash
name: Heimbrodt, Wolfram
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Layered transition-metal dichalcogenides have attracted great interest in the last few years. Thinned down to the monolayer limit they change from an indirect band structure to a direct band gap in the visible region. Due to the monolayer thickness the inversion symmetry of the crystal is broken and spin and valley are coupled to each other. The degeneracy between the two equivalent valleys, K and K', respectively, can be lifted by applying an external magnetic field. Here, we present photoluminescence measurements of CVD-grown tungsten disulphide (WS${_2}$) monolayers at temperatures of 2 K. By applying magnetic fields up to 7 T in Faraday geometry, a splitting of the photoluminescence peaks can be observed. The magnetic field dependence of the A-exciton, the trion and three bound exciton states is discussed and the corresponding g-factors are determined.
description: 4 pages, 4 figures
Brief an [Anton] Felkel
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1776

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Boussinesq equations and their application to the numerical modelling of short period waves
Creators: name: McCowan., Andrew Duncan
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Economic Design Comparison of Pre-Stressed Concrete Slab & Box-Girder Railway Bridges
Creators: name: Ibrahim, Abdoulkader
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: An investigation has been undertaken to study the design comparison of pre-stressed concrete Slab and Box-girder railway bridges based on economy of the structure. Though, the Prestress concrete bridges are the most widely used bridges types, nowadays it's an alternative solution for reducing the dead load of the structure and allows the possibility to build longer span bridges and to carry heavy loads. The condition survey site visit during this study also reveals that railway bridges structure has to be built properly and the contractors have to carry about economy, efficiency of the structures without forgetting maintainability. Slab bridges are to be employed for span less than 15m, though not considered in the actual practice so far. The objective of this study is to develop a reliable engineering Computer program using excel spread sheets template for analysis, design and cost estimate of superstructures of pre-stressed Slab and Box-girder railway bridges. Hence, identifying a clear demarcation of span length for selecting between Slab and Box-girder bridges on the basis of economy, happens to be found indispensable. For the design of superstructure pre-tensioned system is used for Voided Slab bridges and post-tensioned for Box-girder bridges. A comparative study on the basis of cost of materials is conducted to select and identify the economical span range of Voided Slab and Box-Girder bridges. The developed program is illustrated using particular example of both Slab and Box-girder bridges. The analysis results show that precast pre-stressed Voided Slab bridge is economical up to 15m and that of the Box-girder is economical beyond 15m.
Brief an [Gregorio] Fontana
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1776

description: von [Johann Heinrich Lambert]
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Kristallnacht Notes and Service (1995) [Folder]
Creators: name: Reinstein, Victor Hillel, 1950-
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Holocaust memorials
valueUri: http://id.worldcat.org/fast/958834
subject: Kristallnacht (1938)
valueUri: http://id.worldcat.org/fast/989151
subject: Memorial service
valueUri: http://id.worldcat.org/fast/1015902
subject: Holocaust Remembrance Day
valueUri: http://id.worldcat.org/fast/958824
subject: Jewish Holocaust (1939-1945)
valueUri: http://id.worldcat.org/fast/958866
subject: Kristallnacht

description: This folder contains the personal, hand-written and collected published notes for Victor Reinstein's talk for the Kristallnacht Pogrom Service at Congregation Emanu-El, Victoria BC as well as ephemera, including the program, for the service. It also contains Reinstein's annotated copy of the Simon Wiesenthal Centre's Kristallnacht Program Guide as well as a proclamation from the City of Victoria declaring November 9, "Kristallnacht Days" to commemorate the solemn event signed by Mayor David Turner.
Yom Hashoah [Folder] - 03
Creators: name: Reinstein, Victor Hillel, 1950-
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Haggadah
valueUri: http://id.worldcat.org/fast/1356292
subject: Jewish Holocaust (1939-1945)
valueUri: http://id.worldcat.org/fast/958866
subject: Memorial service
valueUri: http://id.worldcat.org/fast/1015902
subject: Holocaust Remembrance Day
valueUri: http://id.worldcat.org/fast/958824
subject: Holocaust memorials
valueUri: http://id.worldcat.org/fast/958834

description: This folder contains Victor Reinstein's notes and research for Yom Hashoah services in Victoria, B.C., and includes letters, service bulletins, hand-written notes, personal testimonies, memorial service programs from around the world, newspaper clippings, and faxes
Cohomologie non ramifiée de degré 3 : variétés cellulaires et surfaces de del Pezzo de degré au moins 5
Creators: name: Cao, Yang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We consider geometrically cellular varieties $X$ over an arbitrary field of characteristic zero. We study the quotient of the third unramified cohomology group $H^3_{nr}(X,\mathbb{Q}/\mathbb{Z}(2))$ by its constant part. For $X$ a smooth compactification of a universal torsor over a geometrically rational surface, we show that this quotient if finite. For $X$ a del Pezzo surface of degree $\geq 5$, we show that this quotient is zero, unless $X$ is a del Pezzo surface of degree 8 of a special type.
description: In French