cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rigidity of minimizers in nonlocal phase transitions
Creators: name: Savin, Ovidiu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We obtain the classification of certain global bounded solutions for semilinear nonlocal equations of the type $$\triangle^s u=W'(u)$$ in $\mathbb{R}^n$,with $s \in (1/2 ,1),$ where $W$ is a double well potential.
description: arXiv admin note: text overlap with arXiv:1610.03448
A Monodromy from London
Creators: name: Kaloper, Nemanja
name: Lawrence, Albion
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We focus on the massive gauge theory formulation of axion monodromy inflation. We argue that a gauge symmetry hidden in these models is the key protection mechanism from dangerous corrections from both field theory and gravitational dynamics. The effective theory of large field inflation is a dual to a massive U(1) 4-form gauge theory, which is similar to a massive gauge theory description of superconductivity. The gauge theory explicitly realizes the old Julia-Toulouse proposal for a low energy description of a gauge theory in a defect condensate. While we work mostly with the example of quadratic axion potential induced by flux monodromy, we discuss how other types of potentials can arise from inclusion of gauge invariant corrections to the theory.
description: 29 pages; v2 -- references added, typos corrected, minor prose changes for clarity
Value Added Protein Products from Chrome Shavings
Creators: name: Getahun, Hiwot
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Attention is invited to the fact that leather industry is the most polluting of all chemical industries, which in turn are more polluting than others. The generation of huge quantity of chromium containing solid wastes is the beginning the real threat. With respect to solid waste potential, over 25% of the waste contains chromium. Implementation of cleaner technologies, waste minimization, recovery and reuse of proteins and chemicals in the tanneries are very important for suitable growth in leather industry, in the present context of stringent environmental regulations on one hand and increased public awareness on the other. Environmental protection aims at preventing pollution of soil, water and air. These require evolving efficient solid waste management and no effluent technologies. Hence, in the present investigation an attempt has been made to isolate the chromium and collagen from chrome shaving waste thereby, converting the waste into valuable protein products. Initially, the raw material and the isolated collagen hydrolysate were characterized for ash, fat and chrome content and the results are 9.2%, 0.85%, 4.2mg/l and 0.9%, 0.9%, 2.3mg/l respectively. Later the collagen was crosslinked with silica for application in retanning as protein filler. The retanning study has been carried out on wetblue sheep skins and the resultant leathers are subjected to scanning electron microscopic analysis and physical testing and the results are comparable with those of conventional ones. Finally, the isolated collagen is converted into glue for industrial applications. The colour of the prepared glue was compared with the commercially available glue (prepared from limed fleshing) and the overall colour difference between local glue and the glue from chrome shavings is more (ΔE=10).
Motion Planning With Gamma-Harmonic Potential Fields
Creators: name: Masoud, Ahmad A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper extends the capabilities of the harmonic potential field (HPF) approach to planning. The extension covers the situation where the workspace of a robot cannot be segmented into geometrical subregions where each region has an attribute of its own. The suggested approach uses a task-centered, probabilistic descriptor of the workspace as an input to the planner. This descriptor is processed, along with a goal point, to yield the navigation policy needed to steer the agent from any point in its workspace to the target. The approach is easily adaptable to planning in a cluttered environment containing a vector drift field. The extension of the HPF approach is based on the physical analogy with an electric current flowing in a nonhomogeneous conducting medium. The resulting potential field is known as the gamma-harmonic potential (GHPF). Proofs of the ability of the modified approach to avoid zero-probability (definite threat) regions and to converge to the goal are provided. The capabilities of the planer are demonstrated using simulation.
Effects of calcium additions on microstructure and creep behaviour of Mg-8Zn-4Al casting alloy
Creators: name: Mendis., Chamini Lakshi
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.
title: Marguerite Duras ou a escrita da ausência
Creators: name: Morais, Ana Paiva
Publisher: name: CICS.NOVA - Centro Interdisciplinar de Ciências Sociais, Faculdade de Ciências Sociais e Humanas, Universidade NOVA de Lisboa / Edições Húmus
Year: 2023

description: Este artigo parte de uma perspetiva sobre o conceito de ausência na escrita de Marguerite Duras, tomando como foco principal Le Ravissement de Lol V. Stein e L’Amante anglaise. A análise destas obras incide sobre personagens (in)determinadas pelo amor e pelo crime com o objetivo de estudar a condição do sujeito feminino na obra durasiana.
description: Morais, A. P. (2023). Marguerite Duras ou a escrita da ausência. Faces de Eva. Estudos sobre a Mulher, (49). ISSN: 0874-6885 eISSN: 2975-884X
Tracing extended low-velocity shocks through SiO emission - Case study of the W43-MM1 ridge
Creators: name: Louvet, F.
name: Gusdorf, F. Motte. A.
name: Nguyen-Luong, Q.
name: Lesaffre, P.
name: Duarte-Cabral, A.
name: Maury, A.
name: Schneider, N.
name: Hill, T.
name: Schilke, P.
name: Gueth, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Previous literature suggests that the densest structures in the interstellar medium form through colliding flows, but patent evidence of this process is still missing. Recent literature proposes using SiO line emission to trace low-velocity shocks associated with cloud formation through collision. In this paper we investigate the bright and extended SiO(2-1) emission observed along the ~5 pc-long W43-MM1 ridge to determine its origin. We used high angular resolution images of the SiO(2-1) and HCN(1-0) emission lines obtained with the IRAM plateau de Bure (PdBI) interferometer and combined with data from the IRAM 30 m radiotelescope. These data were complemented by a Herschel column density map of the region. We performed spectral analysis of SiO and HCN emission line profiles to identify protostellar outflows and spatially disentangle two velocity components associated with low- and high-velocity shocks. Then, we compared the low-velocity shock component to a dedicated grid of one-dimensional (1D) radiative shock models. We find that the SiO emission originates from a mixture of high-velocity shocks caused by bipolar outflows and low-velocity shocks. Using SiO and HCN emission lines, we extract seven bipolar outflows associated with massive dense cores previously identified within the W43-MM1 mini-starburst cluster. Comparing observations with dedicated Paris-Durham shock models constrains the velocity of the low-velocity shock component from 7 to 12km/s. The SiO arising from low-velocity shocks spreads along the complete length of the ridge. Its contribution represents at least 45% and up to 100% of the total SiO emission depending on the area considered. The low-velocity component of SiO is most likely associated with the ridge formation through colliding flows or cloud-cloud collision.
description: 13 pages, 9 figures, accepted by A&A
Brief an [Carl Andreas] Bel
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1768

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
Removal of Golden Yellow 28 Dye from Aqueous Solution Using Thermo-Chemical Modified Peanut Shell Activated Charcoal
Creators: name: Ashenafi, Berhanu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In this study, modified activated carbon from agro by-product (peanut shell) has been successfully produced through chemical activation process using sodium hydroxide (NaOH) as an activating agent and also the effect of activation agent and carbonization temperatures on adsorption efficiency, surface characteristics and yield were studied. To produce modified activated carbon, samples were heated to the final carbonization temperatures 400, 500 and 600 X | ashenaf i B, 2018G.C o C respectively under a continuous pure nitrogen flow (99.6%) and at a heating rate of 10 o C/min with an activation time150min. The physicochemical properties of the raw peanut shell and sodium hydroxide modified peanut shell based activated carbon were characterized by BET, FT-IR, XRD, pH PZC and proximate analysis. The adsorption efficiency tests were performed in the batch adsorption system at different initial concentrations of GY 28 dye 30-150 ppm, contact time 10-90 min, and solution pH 2-10 with 100ml volume of solution at constant solution temperature 25+5°C and 150rpm with 0.5gm of base modified activated carbon @500 o C. This modified adsorbent (BM5) removes 83.3% and 25 mg/gm of the GY 28 dye from aqueous solution at optimal pH of 10 and 60 min with fixed amount of adsorbent, 0.5gm. The equilibrium data was analyzed by Freundlich and Langmuir isotherm models. Finally, the rate of the adsorption process was investigated using Pseudo first and Pseudo second order kinetic models. Pseudo second-order kinetic model was found to be well fitted to the data obtained. Based on the Golden Yellow 28 dye removal efficiency test, the activated carbon produce from raw peanut shell by thermo-chemical activation method can be used as one of the alternative adsorbent in dye wastewater treatment.
Brief an [Johann Christoph] Bischof
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1772

description: Zu einem Aufsatz Bischofs über die Quadratur des Circuls; andere Quadrature; fragt um Mitarbeit bei der Ausarbeitung und Berechnung von mathematischen Tafeln.
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 1782, 2, S.251-253
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Analysis of a growth model inspired by Gompertz and Korf laws, and an analogous birth-death process
Creators: name: Di Crescenzo, Antonio
name: Spina, Serena
Publisher: name: arXiv
Year: 2016
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: 92D25, 60J80, 60J85

description: We propose a new deterministic growth model which captures certain features of both the Gompertz and Korf laws. We investigate its main properties, with special attention to the correction factor, the relative growth rate, the inflection point, the maximum specific growth rate, the lag time and the threshold crossing problem. Some data analytic examples and their performance are also considered. Furthermore, we study a stochastic counterpart of the proposed model, that is a linear time-inhomogeneous birth-death process whose mean behaves as the deterministic one. We obtain the transition probabilities, the moments and the population ultimate extinction probability for this process. We finally treat the special case of a simple birth process, which better mimics the proposed growth model.
description: 25 pages, 11 figures
Highly polarized components of integrated pulse profiles
Creators: name: Wang, P. F.
name: Han, J. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Highly polarized components of pulse profiles are investigated by analyzing observational data and simulating the emission processes. The highly polarized components appear at the leading or trailing part of a pulse profile, which preferably have a flat spectrum and a flat polarization angle curve compared with the low polarized components. By considering the emission processes and propagation effects, we simulate the distributions of wave modes and fractional linear polarization within the entire pulsar emission beam. We show that the highly polarized components can appear at the leading, central, and/or trailing parts of pulse profiles in the models, depending on pulsar geometry. The depolarization is caused by orthogonal modes or scattering. When a sight line cuts across pulsar emission beam with a small impact angle, the detected highly polarized component will be of the O mode, and have a flat polarization angle curve and/or a flat spectrum as observed. Otherwise, the highly polarized component will be of the X mode and have a steep polarization angle curve.
description: 10 pages, 7 figures,Accepted for publication in MNRAS
Brief an [Daniel Gottlob] Davisson
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1771

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 1784, 4, II, S.389-390
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
title: Great power interventions in the middle East since 1917 : the doomed pursuit of national interest in violation of international law: Vols 1 and 2
Creators: name: Terry, Patrick C.R.
Publisher: name: University of Kent
Year: 2023

description: The decision, in 2003, by the United States and the United Kingdom to go to war against Iraq was seen by many as a watershed moment for international law. Operation Iraqi Freedom seemed to herald the ultimate triumph ofthose "realist" critics of international law who had always maintained that powerful states should and did ignore international law when their national interest is at stake. This thesis offers a defence of international law in the face of such criticism. By analysing key Great Power interventions in the Middle East prior to the War on Iraq, it will be shown that international law has always been a minor concern for those leaders who believed their state's national interest would be furthered by intervening in the Middle East. Operation Iraqi Freedom was thus far from being a watershed moment. More importantly, however, the thesis will dispel the notion that international law necessarily conflicts with the national interest of powerful states. A detailed analysis of Great Power interventions in Palestine (1917-1948), at Suez (1956), and in Afghanistan (1979-2011) will demonstrate that in none of these key events did the pursuit of national interest in conscious violation of international law actually benefit the intervenor. Rather, the subsequent "blowback", resulting from these illegal endeavours, was frequently more serious than the danger the intervenor originally sought to combat. Here, too, the Iraq War and its disastrous aftermath seem to have followed the rule, rather than being the exception. The latter conclusion, it will be argued, does allow for some optimism as to the future role of international law. The repeated failure by the Great Powers to obtain their objectives by illegal means evidences that it is not adherence to international law , but rather the conduct of an unrealistic foreign policy in violation of it, that harms a state's national interest. International law, far from being utopian, is grounded in states' past experiences, therefore reflects the realities of international life, and can consequently be a useful guide for a more successful foreign policy.
Development of New Improved Geometry Of Switch in Ethiopian Railroad Track (EMAMY Switch)
Creators: name: Zerihun, Terefe
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: A railroad switch is a device, which enable a rail vehicle to change from one track to another track by means of pair of linked tapering rails known as points or point blades that are lying between the diverging outer rails (the stock rails). These points can be moved laterally in to one of the two positions to direct a train coming from the point blades toward the straight path or the diverging path. A rail track switching system has been designed to control railway track and such controlling is exercised through the use of various track circuits which detect the presence of trains on a particular track, signals within a given area from a single point and central room which monitors the train's safety. But, something electric failure or signals not gives exact location, the switch machine doesn't detect the train is there, due to this, the switch doesn't shift its position, this makes, train in danger or no ways to change direction. Therefore, this research will solve such grate problem by development of new improved geometry of switch with lock rail, due to this improvement, the structural geometry become very easy, simple and applicable in anywhere in railroad line. Referring to the design analysis of improved switch rail from the geometry and ANSYS result and Referring to the design analysis of existing switch rail from literature review, for the same structural support stiffness, existing railway switch shows 2.248 mm at section A-A, 2.158 mm at section B-B and 1.398 mm at section C-C vertical deflection, which are relatively smaller than 3.14mm ISW rail deformation. Hence, the results are within the range of AREMA maximum vertical rail deflection limit which is 6.35mm.This mean that, both rail sections are sufficient enough for the maximum design load. According to the shear parameter, the existing railway switch, for the same radius of wheel and for the same steel structure with equal sleeper spacing shows 149.09 MPa Maximum shears which is greater than 140MPa allowable maximum shear stress. For this reason, the sections are less resistance for high force and vibration than the ISW rail one, which is 8.8 MPa. In case of stress, the current switch shows 137.826MPa at section A-A, 69.468 at section B-B and 45.603 at section c-c maximum stress which is very high comparing to the improved one, switch is 16.277 MPa, this is due to section modulus variation.
Optimal Performance of Mg-SiC Nanocomposite: Unraveling the Influence of Reinforcement Particle Size on Compaction and Densification in Materials Processed via Mechanical Milling and Cold Iso-Static Pressing
Creators: name: Rahimi Mehr, Fatemeh
name: Kamrani, Sepideh
name: Fleck, Claudia
name: Salavati, Mohammad
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
subject: Mg-SiC composite
subject: nano and micro-sized SiC particles
subject: density distribution
subject: cold isostatic press
subject: modified Drucker-Prager Cap model

description: Achieving uniformly distributed reinforcement particles in a dense matrix is crucial for enhancing the mechanical properties of nanocomposites. This study focuses on fabricating Mg-SiC nanocomposites with a high-volume fraction of SiC particles (10 vol.%) using cold isostatic pressing (CIP). The objective is to obtain a fully dense material with a uniform dispersion of nanoparticles. The SiC particle size impact on the compressibility and density distribution of milled Mg-SiC nanocomposites is studied through the elastoplastic Modified Drucker-Prager Cap (MDPC) model and finite element method (FEM) simulations. The findings demonstrate significant variations in the size and dispersion of SiC particles within the Mg matrix. Specifically, the Mg-SiC nanocomposite with 10% submicron-scale SiC content (M10Sµ) exhibits superior compressibility, higher relative density, increased element volume (EVOL), and more consistent density distribution compared to the composite containing 10% nanoscale SiC (M10Sn) following CIP simulation. Under 700 MPa, M10Sµ shows improvements in both computational and experimental results for volume reduction percentage, 2.31% and 2.81%, respectively, and relative density, 4.14% and 3.73%, respectively, compared to M10Sn. The relative density and volume reduction outcomes are in qualitative alignment with experimental findings, emphasizing the significance of particle size in optimizing nanocomposite characteristics.
Drug releasing composite scaffolds for bone tissue regeneration
Creators: name: Melville., Amanda 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.
Spin and the Coulomb Gap in the Half-Filled Lowest Landau Level
Creators: name: Eisenstein, J. P.
name: Khaire, T.
name: Nandi, D.
name: Finck, A. D. K.
name: Pfeiffer, L. N.
name: West, K. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Coulomb gap observed in tunneling between parallel two-dimensional electron systems, each at half filling of the lowest Landau level, is found to depend sensitively on the presence of an in-plane magnetic field. Especially at low electron density, the width of the Coulomb gap at first increases sharply with in-plane field, but then abruptly levels off. This behavior appears to coincide with the known transition from partial to complete spin polarization of the half-filled lowest Landau level. The tunneling gap therefore opens a new window onto the spin configuration of two-dimensional electron systems at high magnetic field.
description: 6 pages, 4 postscript figures. Minor changes. To appear in Physical Review B
Probing the Intrinsic Optical Quality of CVD Grown MoS2
Creators: name: Zafar, Amina
name: Nan, Haiyan
name: Zafar, Zainab
name: Wu, Zhangting
name: Jiang, Jie
name: You, Yumeng
name: Ni, Zhenhua
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The optical emission efficiency of two dimensional layered transition metal dichalcogenides (TMDs) is one of the most important parameter that affects their optoelectronic performance. Optimization of growth parameters of chemical vapor deposition (CVD) to achieve optoelectronics-grade quality TMDs is therefore highly desirable. Here, we present a systematic photoluminescence (PL) spectroscopic approach to assess the intrinsic optical and crystalline quality of CVD grown MoS2. We suggest that the intensity ratio between PL measured in air and vacuum could be used as an effective way to monitor the intrinsic optical quality of CVD MoS2. Low temperature PL measurements are also used to evaluate the structural defects in MoS2 by defect-associated bound exciton emission, which is well correlated with the field effect carrier mobilities of MoS2 grown at different temperatures. This work therefore provides a sensitive, noninvasive method to characterize the optical properties of TMDs, allow tuning of growth parameters for the development of optoelectronic devices.
description: 25 pages, 7 figures
Long-Distance Electric Truck Traffic: Analysis, Modeling and Designing a Demand-Oriented Charging Network for Germany
Creators: name: Menter, Josef
name: Fay, Tu-Anh
name: Grahle, Alexander
name: Göhlich, Dietmar
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::621 Angewandte Physik
subject: electrification
subject: battery electric truck
subject: truck traffic simulation
subject: demand-oriented charging network design
subject: microscopic simulation
subject: MATSim

description: The majority of freight in Germany is carried out by trucks, resulting in emitting approximately 9% of Germany’s carbon dioxide equivalent emissions. In particular, long-distance truck journeys contribute significantly to these emissions. This paper aims to explore the conditions and impacts of introducing E-Trucks in Germany by utilizing a microscopic traffic simulation approach. Therefore, five different electrification levels of the long-distance truck traffic are evaluated. The demand-oriented charging network dimensioning aims for a realistic and implementable design and is based on an average charging power of 720 kW. Additionaly, it considers the necessary infrastructure requirements at service and rest areas next to the motorway. The results of this research provide valuable insights in terms of usage, requirements and demand. For an electrification level of 1%, 177 chargers at 173 charging sites must be implemented, while 1296 chargers and 457 charging sites must be built for an electrification level of 20%. The increase in the electrification level leads to more efficient occupancy of the charging facilities; i.e., an increase from 1% to 5% improves the average occupation time ratio per charger by approximately 130%. Of the total energy consumed, 65% is recharged en-route at public chargers. Between Monday and Thursday, each 1% electrification level increase requires 2.68 GW h more energy for the public recharging network.
Optimisation of Internal Shape of Disc Brake to Increase Ventilation
Creators: name: Abrham, Tibeb
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Brake system has always been one of the most critical active safety systems. Brake cooling is further an important aspect to consider for brake disc durability and performance. In railway transport, braking the train without overheating the discs and losing the braking capacity is a matter of safety. In urban railway transport, like AALRT, the speed of trains is confined to the lower limit because it is difficult to decelerate and stop the train within the short distance of the closely spaced stations. During braking, all the kinetic energy of the train is changed into frictional and finally to heat energy which causes the brake to overheat and lose its braking capacity. To prevent the occurrence of brake heating, brake rotor must be designed such that it ensures sufficient heat dissipation. The special structure for ventilation not only increases the surface area of the disc rotor but also enhances airflow around the surface of the disc to achieve a higher convectional heat transfer. In this research a fluid flow CFX, Thermal and Stress analysis is done on three types of disc brakes; a curved vane and two types of pin vented rotors using finite element method. The fluid flow CFX is used to calculate the cooling effect of the moving air relative to the brake rotor. The pin vented rotors have elliptic cross section with different geometric parameters. Pin vented rotor creates turbulence and gives higher heat transfer coefficient. It has been observed that the pin vented disk brake with elliptic cross section pins which has higher eccentricity has good heat dissipation characteristics. Changing the geometry of the pins increasing the eccentricity of the elliptic cross section creates larger surface area to volume ratio and less obstruction to the air flow which enables to have higher convection heat transfer coefficient. After emergency braking of AALRT with maximum track gradient of 3.15 0 and overload condition, a maximum temperature gradient of 334.95 0 C is achieved with one of the pin vented brake which has higher eccentricity while it is 340.93 o C and 346.89 o C for the second type of pin vented brake and the curved vane rotors respectively.
Brief an [Henri Alexandre] de Catt
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1764

description: von [Johann Heinrich Lambert]
description: Eigenhändige Kopie
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
description: Siehe auch: L Ia 705:Bl.114
Rate processes in the extraction of malt
Creators: name: Meddings., James Philipp
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.
Intensity contrast of the average supergranule
Creators: name: Langfellner, J.
name: Birch, A. C.
name: Gizon, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: While the velocity fluctuations of supergranulation dominate the spectrum of solar convection at the solar surface, very little is known about the fluctuations in other physical quantities like temperature or density at supergranulation scale. Using SDO/HMI observations, we characterize the intensity contrast of solar supergranulation at the solar surface. We identify the positions of ${\sim}10^4$ outflow and inflow regions at supergranulation scales, from which we construct average flow maps and co-aligned intensity and magnetic field maps. In the average outflow center, the maximum intensity contrast is $(7.8\pm0.6)\times10^{-4}$ (there is no corresponding feature in the line-of-sight magnetic field). This corresponds to a temperature perturbation of about $1.1\pm0.1$ K, in agreement with previous studies. We discover an east-west anisotropy, with a slightly deeper intensity minimum east of the outflow center. The evolution is asymmetric in time: the intensity excess is larger 8 hours before the reference time (the time of maximum outflow), while it has almost disappeared 8 hours after the reference time. In the average inflow region, the intensity contrast mostly follows the magnetic field distribution, except for an east-west anisotropic component that dominates 8 hours before the reference time. We suggest that the east-west anisotropy in the intensity is related to the wave-like properties of supergranulation.
description: 5 pages, 3 figures (plus appendix), accepted for publication in A&A
Brief an [Johann Lorenz] Boeckmann
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1773

description: Über seine "Cosmologischen Briefe"; Sternnebel, Orionnebel, Abweichungen in der Bahn des Saturn; Zahl der Kometen; zu einer Rede über den Flor der Wissenschaften.
description: von J[ohann] H[einrich] 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.417-422
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Pinwheel valence bond crystal ground state of the spin-1/ 2 Heisenberg antiferromagnet on the shuriken lattice
Creators: name: Astrakhantsev, Nikita
name: Ferrari, Francesco
name: Niggemann, Nils
name: Müller, Tobias
name: Chauhan, Aishwarya
name: Kshetrimayum, Augustine
name: Ghosh, Pratyay
name: Regnault, Nicolas
name: Thomale, Ronny
name: Reuther, Johannes
name: Neupert, Titus
name: Iqbal, Yasir
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Frustrated magnetism
subject: Quantum spin liquid
subject: Antiferromagnets
subject: Classical spin models
subject: Kagome lattice
subject: Quantum spin models
subject: Functional renormalization group
subject: Gutzwiller approximation
subject: Heisenberg model
subject: Monte Carlo methods
subject: Variational approach
subject: Variational wave functional methods
subject: 500 Naturwissenschaften und Mathematik::530 Physik::539 Moderne Physik

description: We investigate the nature of the ground state of the spin-12 Heisenberg antiferromagnet on the shuriken lattice by complementary state-of-the-art numerical techniques, such as variational Monte Carlo (VMC) with versatile Gutzwiller-projected Jastrow wave functions, unconstrained multivariable variational Monte Carlo (mVMC), and pseudofermion/pseudo-Majorana functional renormalization group (PFFRG/PMFRG) methods. We establish the presence of a quantum paramagnetic ground state and investigate its nature, by classifying symmetric and chiral quantum spin liquids, and inspecting their instabilities towards competing valence bond crystal (VBC) orders. Our VMC analysis reveals that a VBC with a pinwheel structure emerges as the lowest-energy variational ground state, and it is obtained as an instability of the U(1) Dirac spin liquid. Analogous conclusions are drawn from mVMC calculations employing accurate BCS pairing states supplemented by symmetry projectors, which confirm the presence of pinwheel VBC order by a thorough analysis of dimer-dimer correlation functions. Our work highlights the nontrivial role of quantum fluctuations via the Gutzwiller projector in resolving the subtle interplay between competing orders.
Cascaded forward Brillouin scattering to all Stokes orders
Creators: name: Wolff, Christian
name: Stiller, Birgit
name: Eggleton, Benjamin. J.
name: Steel, Michael J.
name: Poulton, Christopher G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Inelastic scattering processes such as Brillouin scattering can often function in cascaded regimes and this is likely to occur in certain integrated opto-acoustic devices. We develop a Hamiltonian formalism for cascaded Brillouin scattering valid for both quantum and classical regimes. By regarding Brillouin scattering as the interaction of a single acoustic envelope and a single optical envelope that covers all Stokes and anti-Stokes orders, we obtain a compact model that is well suited for numerical implementation, extension to include other optical nonlinearities or short pulses, and application in the quantum-optics domain. We then theoretically analyze intra-mode forward Brillouin scattering (FBS) for arbitrary waveguides with and without optical dispersion. In the absence of optical dispersion, we find an exact analytical solution. With a perturbative approach, we furthermore solve the case of weak optical dispersion. Our work leads to several key results on intra-mode FBS. For negligible dispersion, we show that cascaded intra-mode FBS results in a pure phase modulation and discuss how this necessitates specific experimental methods for the observation of fibre-based and integrated FBS. Further, we discuss how the descriptions that have been established in these two classes of waveguides connect to each other and to the broader context of cavity opto-mechanics and Raman scattering. Finally, we draw an unexpected striking similarity between FBS and discrete diffraction phenomena in waveguide arrays, which makes FBS an interesting candidate for future research in quantum-optics.
description: 18 pages, 8 figures
Transesterfication of Neem Seed Oil Into Fatty Acid Methyl Ester Using Na2O/CaO Catalyst
Creators: name: Abebe, Dagmawi
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Environmental deterioration is affecting the way of living on earth. A lot of efforts are being made to reduce impact on the environment. Generating better sources for transportation fuels is part of the effort, since it reduce higher level fossil fuel consumption. Biodiesel is an alternative energy fuel to petroleum diesel with clean, renewable, biodegradability, and less exhaust emission advantage. Ethiopia's economy is swifting, parallelly the energy demand is increasing. However, the country is completely dependent on imported petroleum fuel. The price of petroleum fuel is increasing from time to time. Therefore, there is a need to secure energy that can substitute the import and support the economic development as well. Biodiesel can be produced from plenty of oil containing feedstock. Non edible oil seed bearing plants are the major choice for Ethiopia. Neem tree that can grow on degraded soil and/or waste land with very low input requirement is considered as a potential biodiesel feedstock based on its oil content and biodiesel yield. In addition, the tree can provide a lot of socioeconomic importance for the community around the plantation site. In this study, oil content of Neem seed was found to be 42% with 15% FFA. Neem oil free fatty acid reduction screening was conducted via acid treatment. Successfully, FFA was reduced to 0.375% by 0.60% v/v sulfuric acid to oil ratio and 60ml CH3OH. Heterogeneous catalyst (Na2O/CaO) loading screening based on fatty acid methyl ester yield was performed; higher yield (84.73 %) was obtained at 40% wt/wt Na2O/CaO loading. Acid treated Neem oil was subjected to heterogeneous catalyzed transesterfication reaction. Transesterfication reaction input process variables: reaction temperature, catalyst to oil weight ratio, and methanol to oil molar ratio optimum point were determined to provide maximum fatty acid methyl ester yield with central composite design, which end up in agreement with the real process data. Thus, maximum yield of 92.80% was obtained at 580C temperature, 11.71% methanol to oil molar ratio, and 8.50% catalyst to oil weight ix ratio. Physico-chemical characteristics of fatty acid methyl ester was determined and found to be within the standard limit.
Shapiro Spikes and Negative Mobility for Skyrmion Motion on Quasi-One-Dimensional Periodic Substrates
Creators: name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a simple numerical model of skyrmions in a two-dimensional system interacting with a quasi-one dimensional periodic substrate under combined dc and ac drives where the dc drive is applied perpendicular to the substrate periodicity, we show that a rich variety of novel phase locking dynamics can occur due to the influence of the Magnus term on the skyrmion dynamics. Instead of Shapiro steps, the velocity response in the direction of the dc drive exhibits a series of spikes, including extended dc drive intervals over which the skyrmions move in the direction opposite to the dc drive, producing negative mobility. There are also specific dc drive values at which the skyrmions move exactly perpendicular to the dc drive direction, giving a condition of absolute transverse mobility.
description: 5 pages, 4 postscript figures
Rudolf Clausius (1822-1888) an den Direktor des Eidgenössischen Polytechnikums, Pompejus Alexander Bolley (1812-1870)
Creators: name: Clausius, Rudolf Emmanuel
Publisher: name: [s.n.]
Year: 1863

description: Brief aus Zürich.
Rudolf Clausius und Pompejus Alexander Bolley als Direktor des Polytechnikums tauschten sich aus zur Frage der Zulassung von Zuhörern bzw. ob es zulässig sei, dass die Abteilungskonferenz darüber berate. vgl. Rektoratsmissiven, den Brief von Pompejus Alexander Bolley an Rudolf Clausius, 1.12.1863, Bd 1, 1862-1863, S. 275f
Anti-Semitism [Folder]
Creators: name: Reinstein, Victor Hillel, 1950-
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Judaism
valueUri: http://id.worldcat.org/fast/984280
subject: Religion
valueUri: http://id.worldcat.org/fast/1093763
subject: Jewish Holocaust (1939-1945)
valueUri: http://id.worldcat.org/fast/958866
subject: Jews--Persecutions
valueUri: http://id.worldcat.org/fast/983322
subject: Oberammergauer Passionsspiel
valueUri: http://id.worldcat.org/fast/1356324
subject: Antisemitism
valueUri: http://id.worldcat.org/fast/810769
subject: Holocaust denial
valueUri: http://id.worldcat.org/fast/958828
subject: Holocaust memorials
valueUri: http://id.worldcat.org/fast/958834
subject: Holocaust survivors
valueUri: http://id.worldcat.org/fast/958838

description: This folder contains newspaper clippings, notes, and research into anti-Semitism in Victoria, Canada, and the world. It includes a publication on the Oberammergau Passion Play (1980).
Brief an [Gottfried Christoph] Beireis
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1773
Subjects: Bernoulli, Johann1744-1807JohannBernoulli
Hirschel, H

description: Bernoullis Ephemeriden; der Tod des H. Hirschel; die Abhandlung Lamberts über die Farbenpyramide und die danach hergestellten Malfarben.
description: von J[ohann] H[einrich] Lambert
description: Korrigierte Reinschrift
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.261-262
description: Verzeichnung=Description=Inventaire Juni 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Entrepreneurial citizenship in urban regeneration
Creators: name: Al Sader, Nuha
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2023

description: More and more citizens are entering the public domain and taking over tasks that traditionally belong to the government. For example, citizens increasingly run a community centre themselves, maintain the greenery in their neighbourhood and manage the local playground. To some extent, governments also encourage this behaviour and are disposing of social real estate. Against this background, this study examines the rise of citizens' initiatives in the Netherlands and how this takes shape in the context of urban regeneration. The study pays attention to a specific type of citizens’ initiative, namely community enterprises. It applies qualitative research methods, such as semi-structured interviews with representatives of community enterprises and discourse analysis of policy documents. It examines the expectations governments have of active citizens and how this relates to the motivations and capacities of active citizens themselves. The study broadens our understanding of active citizens who utilizes their entrepreneurial skills and mindset to drive positive change, contribute to the well-being of their community, and address pressing societal challenges.
description: A+BE | Architecture and the Built Environment, No. 16 (2023): Entrepreneurial citizenship in urban regeneration
Vibration based condition monitoring of low speed rolling element bearings
Creators: name: Mechefske., Christopher K.
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 [Henri Alexandre] de Catt
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
description: Siehe auch: L Ia 705:Bl.113r
Relevant parameters in models of cell division control
Creators: name: Grilli, Jacopo
name: Osella, Matteo
name: Kennard, Andrew S.
name: Lagomarsino, Marco Cosentino
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A recent burst of dynamic single-cell growth-division data makes it possible to characterize the stochastic dynamics of cell division control in bacteria. Different modeling frameworks were used to infer specific mechanisms from such data, but the links between frameworks are poorly explored, with relevant consequences for how well any particular mechanism can be supported by the data. Here, we describe a simple and generic framework in which two common formalisms can be used interchangeably: (i) a continuous-time division process described by a hazard function and (ii) a discrete-time equation describing cell size across generations (where the unit of time is a cell cycle). In our framework, this second process is a discrete-time Langevin equation with a simple physical analogue. By perturbative expansion around the mean initial size (or inter-division time), we show explicitly how this framework describes a wide range of division control mechanisms, including combinations of time and size control, as well as the constant added size mechanism recently found to capture several aspects of the cell division behavior of different bacteria. As we show by analytical estimates and numerical simulation, the available data are characterized with great precision by the first-order approximation of this expansion. Hence, a single dimensionless parameter defines the strength and the action of the division control. However, this parameter may emerge from several mechanisms, which are distinguished only by higher-order terms in our perturbative expansion. An analytical estimate of the sample size needed to distinguish between second-order effects shows that this is larger than what is available in the current datasets. These results provide a unified framework for future studies and clarify the relevant parameters at play in the control of cell division.
description: 15 pages, 5 figures
Brief an [Giovan Francesco Mauro Melchiore Salvemini] de Castillon
Creators: name: Lambert, Johann Heinrich
Publisher: name: [s.n.]
Year: 1770

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
description: Bl. 120-121: Berechnungen (Autograph)