cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Productivity of Non-Orthogonal Term Rewrite Systems
Creators: name: Raffelsieper, Matthias
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Productivity is the property that finite prefixes of an infinite constructor term can be computed using a given term rewrite system. Hitherto, productivity has only been considered for orthogonal systems, where non-determinism is not allowed. This paper presents techniques to also prove productivity of non-orthogonal term rewrite systems. For such systems, it is desired that one does not have to guess the reduction steps to perform, instead any outermost-fair reduction should compute an infinite constructor term in the limit. As a main result, it is shown that for possibly non-orthogonal term rewrite systems this kind of productivity can be concluded from context-sensitive termination. This result can be applied to prove stabilization of digital circuits, as will be illustrated by means of an example.
description: In Proceedings WRS 2011, arXiv:1204.5318
MPEC 2023-X29 : 2021 TH192
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2021 TH192

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Multi-wavelength Observations of the Enduring Type IIn Supernovae 2005ip and 2006jd
Creators: name: Stritzinger, Maximilian
name: Taddia, Francesco
name: Fransson, Claes
name: Fox, Ori D.
name: Morrell, Nidia
name: Phillips, M. M.
name: Sollerman, Jesper
name: Anderson, J. P.
name: Boldt, Luis
name: Brown, Peter J.
name: Campillay, Abdo
name: Castellon, Sergio
name: Contreras, Carlos
name: Folatelli, Gaston
name: Habergham, S. M.
name: Hamuy, Mario
name: Hjorth, Jens
name: James, Phil A.
name: Krzeminski, Wojtek
name: Mattila, Seppo
name: Persson, Sven E.
name: Roth, Miguel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an observational study of the Type IIn supernovae (SNe IIn) 2005ip and 2006jd. Broad-band UV, optical and near-IR photometry, and visual-wavelength spectroscopy of SN 2005ip complement and extend upon published observations to 6.5 years past discovery. Our observations of SN 2006jd extend from UV to mid-infrared wavelengths, and like SN 2005ip, are compared to reported X-ray measurements to understand the nature of the progenitor. Both objects display a number of similarities with the 1988Z-like subclass of SN IIn including: (i) remarkably similar early- and late-phase optical spectra, (ii) a variety of high ionization coronal lines, (iii) long-duration optical and near-IR emission and, (iv) evidence of cold and warm dust components. However, diversity is apparent including an unprecedented late-time r-band excess in SN 2006jd.The observed differences are attributed to differences between the mass-loss history of the progenitor stars. We conclude that the progenitor of SN 2006jd likely experienced a significant mass-loss event during its pre-SN evolution akin to the great 19th century eruption of ηCarinae. Contrarily, as advocated by Smith et al. (2009), we find the circumstellar environment of SN 2005ip to be more consistent with a clumpy wind progenitor.
description: Submitted May 2012 and to appear in ApJ. Manuscript consists of 61 pages, including 19 figures and 11 tables. Comments welcome; referee approves for publication
Granular Mixing and Segregation: Continuum Modelling and Processes Optimisation
Creators: name: YANG, LIUYIMEI
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 400406
subject: Powder and particle technology
classificationCode: 460207
subject: Modelling and simulation

description: Solid particles, as the second-largest group of material on earth, are important in many industries. Unlike fluid mixing, the particles can segregate (or de-mixing) due to differences in size and density while being mixed. This thesis develops an efficient computational model to further understanding the mechanism of solid mixing and segregation, thus improved the efficiency of processing industries. This new model is generally applicable in different systems from simple to complex.
Instrumentation and ultrasound for epidural anesthesia
Creators: name: Tran, Denis
Publisher: name: University of British Columbia
Year: 2010

description: Lumbar epidural anesthesia is used for alleviating the pain of labor and for surgery. Here, a catheter is threaded through a Tuohy needle that is traditionally inserted using the loss-of-resistance technique to confirm entry into the epidural space. This research begins with a study of the loss-of-resistance through instrumentation. Sensors measure 1)the force applied at the plunger by the anesthesiologist, 2)the pressure at the needle tip and 3)the position of the plunger relative to the syringe. The “feel” in different tissues is quantified for porcine subjects ex vivo and human subjects in vivo. A vertebra counting protocol is developed to identify the desired vertebral interspaces. Ultrasound is then used to measure anatomical distances such as the distance between the skin and ligamentum flavum and surrogate measures compared to the actual needle insertion depth. Good correlation is only found between skin-to-ligamentum flavum and the actual needle insertion depth. Next, a real-time in-plane ultrasound technique is developed with a needle guide fixing the needle trajectory to the ultrasound transducer. This allows the anesthesiologist to guide the insertion of the epidural needle as an “aim-and-insert” method. In 18 of 19 subjects, the procedure was successfully performed. The key limitation of ultrasound in this application is the image quality that inhibits interpretation of the images. A median-based spatial compounding with warping is performed to align the anatomical features of different beam-steered images and combine them to obtain a single enhanced image. This method is tested on image sets of phantoms and lumbar anatomy of 23 human subjects and shows a significant improvement in noise reduction and clarity. Another limitation is the interpretation of ultrasounds of the spinal anatomy requires understanding of ultrasound. An automatic detection algorithm is developed based on the experienced sonographer’s method of detecting the ligamentum flavum in ultrasounds. This novel method is tested on ultrasounds of the lumbar anatomy in 20 human subjects and shows the method successfully detects the ligamentum flavum in 34 of 39 cases. The main conclusion is that specialized ultrasound tools and protocols are needed to accomodate the range of patients and levels of experience of practitioners.
Catalytic pyrolysis of end-of-life tyres into fuels
Creators: name: CHAUDHRY, UMER KHALIL
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 400499
subject: Chemical engineering not elsewhere classified

description: Around 56 million end-of-life tyres (EOLT) are generated annually in Australia. At present, these are usually scrapped. In the last decade, the pyrolysis of end-of-life tyres has gained considerable attention for the role it plays in accelerating the circular economy of waste materials. This thesis is mainly focused on the catalytic pyrolysis of tyres and extends the work to co-pyrolysis with waste polymer - LDPE. A series of interrelated investigations were conducted to design fit-for-purpose catalyst materials required for the pyrolysis of scrap tyre. Furthermore, the reaction mechanism of co-pyrolysis was elucidated with the aim to establish the correlation between the underpinning mechanism and product composition.
On the molecular mechanism of surface charge amplification and related phenomena at aqueous polyelectrolyte-graphene interfaces
Creators: name: Chialvo, A. A.
name: Simonson, J. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this communication we illustrate the occurrence of a recently reported new phenomenon of surface-charge amplification, SCA, (originally dubbed overcharging, OC), [Jimenez-Angeles F. and Lozada-Cassou M., J. Phys. Chem. B, 2004, 108, 7286] by means of molecular dynamics simulation of aqueous electrolytes solutions involving multivalent cations in contact with charged graphene walls and the presence of short-chain lithium polystyrene sulfonates where the solvent water is described explicitly with a realistic molecular model. We show that the occurrence of SCA in these systems, in contrast to that observed in primitive models, involves neither contact co-adsorption of the negatively charged macroions nor divalent cations with a large size and charge asymmetry as required in the case of implicit solvents. In fact the SCA phenomenon hinges around the preferential adsorption of water (over the hydrated ions) with an average dipolar orientation such that the charges of the water's hydrogen and oxygen sites induce magnification rather than screening of the positive-charged graphene surface, within a limited range of surface-charge density.
description: 10 pages, 6 figures
title: MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen
Creators: name: Caspari, Catharina
name: Czubaiko, Achim
name: Still, Melina
name: Valc, Jakub
name: Mienert, Navin
name: Buser, Andreas
name: Weiß, Norman
Publisher: name: Universitätsverlag Potsdam
Year: 2023
Subjects: subject: 340 Recht

description: Aus dem Inhalt: - Menschenrechtsklagen vor Zivilgerichten in Deutschland – Eine Bestandsaufnahme der methodisch-rechtspolitischen Ansätze im Internationalen Privatrecht (IPR) - Das Vorsorgeprinzip – ein unterschätzter Bestandteil menschenrechtlicher Klimaklagen? - Der Menschenrechtsausschuss der Vereinten Nationen und die Klimakrise – Die Entscheidung Billy et al. gegen Australien und ihr Beitrag zur „Begrünung“ des Menschenrechtsschutzes
description: MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen; 01/2023
Heterogeneous Catalytic Hydrogenation of COx into Oxymethylene Dimethyl Ethers
Creators: name: AHMAD, WAQAR
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 340601
subject: Catalysis and mechanisms of reactions
classificationCode: 400408
subject: Reaction engineering (excl. nuclear reactions)

description: Sustainable energy production and environmental crisis are two hot research topics nowadays. Therefore, current research is focused on the synthesis of oxymethylene dimethyl ethers from heterogeneous catalytic carbon oxides hydrogenation which can provide the sustainable fuel as well as help to solve the environmental problems arising from carbon oxides emissions.
Historical Data Conversion and Archiving
Creators: name: Roy, Chandra Shekhar
name: Hossain, Alamgir
Publisher: name: Zenodo
Year: 2023

description: Making historical analog data Re-useable: a successful outcome of Data Rescue/Conservation Discipline at Bangladesh Bureau of Statistics. Short Title: Historical Data Conversion and Archiving.Abstract: Bangladesh starts its journey focusing on ICT with a view to realizing the vision of 'Smart Bangladesh 2041'. Thus, in the long run, census and survey data can be used exhaustively in the planning process to transform into Smart Bangladesh by 2041. In Bangladesh, several types of official data are released under the Statistics Act. Bangladesh Bureau of Statistics (BBS) played a significant role in the field of historical Statistical data preservation. After the independence of Bangladesh in 1971, there was a rich repository of statistical microdata in IBM 360 to ES/9000 model mainframe tapes dating back to the late 1970s and early 2000s. Almost 8600 nine-track ½ inch spool tapes were used to preserve those data. Recently BBS has converted all those data from EBCDIC format to ASCII format. About 165 data sets have been recovered which have been declared as Digital Assets. The overarching objective is to strengthen the prevailing national statistical archiving system. BBS will be making available this large volume of converted data to the citizens of Bangladesh as well as globally so that academic and scholarly debates can take place taking cognizance of historical data. Since independence, 2,391 BBS surveys and census publications have been digitized and converted to e-book systems. The overarching objective is to strengthen the prevailing national statistical archiving system. By revisiting time series data, it is hoped that well-informed and meticulous policies can be designed and formulated in the future. Most fundamentally, the availability and easy accessibility to such a large volume of Big Data will inspire reassessing economic theories and indicators of development informing Bangladesh's position in global rankings like Sustainable Development Goals (SDG). An alternate backup has been established for data Preservation at a distance of 200 km from NSO headquarters. Keywords. Historical data, Data preservation, Microdata, Statistics Act, SDG. IBM, Archiving.
A critical analysis of three near-infrared photometric methods of estimating distances to cataclysmic variables
Creators: name: Gariety, Michael J.
name: Ringwald, F. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A critical analysis of three methods of estimating distances to cataclysmic variables (CVs) is performed. These methods, by Ak et al., Beuermann, and Knigge, all use near-infrared (JHK or Ks) magnitudes and the Barnes-Evans relation. We compare all three methods to distances measured by trigonometric parallax by Thorstensen, with Hubble Space Telescope, and with the HIPPARCOS spacecraft. We find that the method of Ak et al. works best overall for all CVs, predicting distances on the average 4% less than those measured by trigonometric parallaxes. The method of Beuermann overestimates distances by 52%. The method of Knigge underestimates distances by 26%, although this was only ever meant as a lower limit, since it assumes all light comes from the secondary star.
description: 17 pages, 7 figures, 2 tables; accepted for publication in New Astronomy
Soft Plasmonics Based on Plasmene Nanosheets
Creators: name: Fu, Runfang
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 401805
subject: Nanofabrication, growth and self assembly
classificationCode: 401807
subject: Nanomaterials

description: In parallel to the burgeoning field of soft electronics, soft plasmonics concerns about the design and fabrication of plasmonic structures supported on flexible materials. By using 2D closely packed, one-particle thick plasmonic nanoassemblies (i.e. plasmene nanosheets), this thesis has demonstrated three kinds of soft plasmonic structures including elastomer-supported plasmene nanosheets that built from sphere-like and elongated nanoparticles and flexible substrate-supported Janus plasmene nanosheets. The mechanically manipulated plasmonic property and the potential application of soft plasmonic structures have further been illustrated. The successful design of soft plasmonic structures in this thesis indicates some new insight in designing future plasmonic devices.
Implications of 3+1 Short-Baseline Neutrino Oscillations
Creators: name: Giunti, Carlo
name: Laveder, Marco
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present an upgrade of the 3+1 global fit of short-baseline neutrino oscillation data obtained with the addition of KARMEN and LSND nu_e-Carbon scattering data. We discuss the implications for the measurements of the effective neutrino mass in beta-decay and neutrinoless double-beta-decay experiments. We find respective predicted ranges of about 0.1-0.7 eV and 0.01-0.1 eV.
description: 10 pages. Added missing references. Final version to be published in PLB
Particle scale modelling of powder spreading in powder bed fusion additive manufacturing
Creators: name: WANG, LIN
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 401408
subject: Manufacturing processes and technologies (excl. textiles)
classificationCode: 400406
subject: Powder and particle technology
classificationCode: 460207
subject: Modelling and simulation

description: Powder bed fusion is an additive manufacturing process where powders are added and melted layer by layer. In this process, powder spreading by rollers or blades plays a significant role in affecting powder layer structure then process speed and part quality. However, the dynamics of powder spreading is still not well known. This thesis presents a comprehensive investigation of powder dynamics in spreading, including effects of key variables such as particle adhesion, layer gap, spreader geometries and speed, and particle size distribution. This work can help researchers and industries in understanding, prediction and optimisation of this process.
Ultraviolet Spectroscopy of Asteroid (4) Vesta
Creators: name: Li, Jian-Yang
name: Bodewits, Dennis
name: Feaga, Lori M.
name: Landsman, Wayne
name: A'Hearn, Michael F.
name: Mutchler, Max J.
name: Russell, Christopher T.
name: McFadden, Lucy A.
name: Raymond, Carol A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report a comprehensive review of the UV-visible spectrum and rotational lightcurve of Vesta combining new observations by Hubble Space Telescope and Swift Gamma-ray Burst Observatory with archival International Ultraviolet Explorer observations. The geometric albedos of Vesta from 220 nm to 953 nm are derived by carefully comparing these observations from various instruments at different times and observing geometries. Vesta has a rotationally averaged geometric albedo of 0.09 at 250 nm, 0.14 at 300 nm, 0.26 at 373 nm, 0.38 at 673 nm, and 0.30 at 950 nm. The linear spectral slope as measured between 240 and 320 nm in the ultraviolet displays a sharp minimum near a sub-Earth longitude of 20^{\circ}, and maximum in the eastern hemisphere. This is consistent with the longitudinal distribution of the spectral slope in the visible wavelength. The photometric uncertainty in the ultraviolet is ~20%, and in the visible wavelengths it is better than 10%. The amplitude of Vesta's rotational lightcurves is ~10% throughout the range of wavelengths we observed, but is smaller at 950 nm (~6%) near the 1-\mum band center. Contrary to earlier reports, we found no evidence for any difference between the phasing of the ultraviolet and visible/near-infrared lightcurves with respect to sub-Earth longitude. Vesta's average spectrum between 220 and 950 nm can well be described by measured reflectance spectra of fine particle howardite-like materials of basaltic achondrite meteorites. Combining this with the in-phase behavior of the ultraviolet, visible, and near-infrared lightcurves, and the spectral slopes with respect to the rotational phase, we conclude that there is no global ultraviolet/visible reversal on Vesta. Consequently, this implies a lack of global space weathering on Vesta, as previously inferred from visible-near-infrared data.
description: 44 pages, 5 figures, 1 table
Controlling synchronization in large laser networks using number theory
Creators: name: Nixon, Micha
name: Fridman, Moti
name: Ronen, Eitan
name: Friesem, Asher A.
name: Davidson, Nir
name: Kanter, Ido
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Synchronization in networks with delayed coupling are ubiquitous in nature and play a key role in almost all fields of science including physics, biology, ecology, climatology and sociology. In general, the published works on network synchronization are based on data analysis and simulations, with little experimental verification. Here we develop and experimentally demonstrate various multi-cluster phase synchronization scenarios within coupled laser networks. Synchronization is controlled by the network connectivity in accordance to number theory, whereby the number of synchronized clusters equals the greatest common divisor of network loops. This dependence enables remote switching mechanisms to control the optical phase coherence among distant lasers by local network connectivity adjustments. Our results serve as a benchmark for a broad range of coupled oscillators in science and technology, and offer feasible routes to achieve multi-user secure protocols in communication networks and parallel distribution of versatile complex combinatorial tasks in optical computers.
description: 13 pages, 4 figure and supplementary information
Rydberg crystallization detection by statistical means
Creators: name: Breyel, David
name: Schmidt, Thomas L.
name: Komnik, Andreas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate an ensemble of atoms which can be excited into a Rydberg state. Using a disordered quantum Ising model, we perform a numerical simulation of the experimental procedure and calculate the probability distribution function $P(M)$ to create a certain number of Rydberg atoms $M$, as well as their pair correlation function. Using the latter, we identify the critical interaction strength above which the system undergoes a phase transition to a Rydberg crystal. We then show that this phase transition can be detected using $P(M)$ alone.
description: 7 pages, 9 figures
Efficient Flow Chemistry for Large Scale Metal-Organic Framework Production
Creators: name: He, Brandon Junyin
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 400499
subject: Chemical engineering not elsewhere classified
classificationCode: 400409
subject: Separation technologies

description: Metal-Organic Frameworks are porous materials of significant interest in tackling industrial and environmental challenges, such as catalysis and carbon capture, due to its permanent porosity, chemical versatility, and thermal stability. Current methods of production are not conducive to scaling up due to high costs and lengthy synthesis times. This thesis explores methods to address these issues and to understand the formation of these materials during synthesis. Findings from this research guides future development and production of such materials and enables future technologies to address the current challenges.
Blueprint of Shopping Center Parking Sketch F, Stony Brook, October 14, 1939
Creators: name: Smythe, Richard Haviland
name: Melville, Ward, 1887-1977
name: Organization, Ward Melville Heritage
name: Stony Brook Community Fund
Publisher: name: Unknown
Year: 0
Subjects: Stony Brook
Sketches
Blueprints
Plans
Architects
Shopping centers
Architectural drawings
Stores & shops

description: This blueprint shows sketch "F" for a proposed shopping center located in Stony Brook, L. I. This plan was completed by architect Richard Haviland Smythe, located at 681 fifth avenue, New York. Building for D.T. Bayles & Son.
Nano-confined multi component metal hydride system for hydrogen sensing application
Creators: name: Ibrahim, Arif
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 340108
subject: Sensor technology (incl. chemical aspects)

description: Hydrogen has been portrayed as a new alternative for the energy source to replace non-renewable energy sources such as fossil fuel. Hydrogen is going to be a prime part of the fuel cells, particularly for automobiles. Hydrogen energy is also useful for space applications, as combustion of hydrogen can provide very high energy densities as compared to other energy sources. Safety is a crucial aspect while handling hydrogen as it is highly flammable above its lower explosion limit. In our work, we studied the hydrogen sensing properties of the metal hydride namely Pd, Pt impregnated graphitic carbon nitride (g-C3N4) nanocomposite, and metal oxide ZnO impregnated graphitic carbon nitride nanocomposite at room temperature. We studied the various important factors such as response and recovery time, stability, and the sensitivity of the sensor at room temperature.
Metabolomic profile in cycling time trial
Creators: name: Azevedo, Rafael
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310908
subject: Animal physiology - biophysics
classificationCode: 310909
subject: Animal physiology - cell
classificationCode: 310910
subject: Animal physiology - systems

description: All metabolite identified for each phase of a 4-km cycling time trial using a non-targeted metabolomic analysis.Also, the metabolomic profile with all metabolite for each phase of the 4-km cycling time trial.
title: Zustandsüberwachung von Getrieben durch Nutzung eines Zahnrads als Maßverkörperung
Creators: name: Schäffner, Marten
Publisher: name: UNSPECIFIED
Year: 2023

description: In der vorliegenden Arbeit wird mit einem für die Zustandsüberwachung neuem Sensorkonzept gearbeitet. Durch den Einsatz von MR-Drehzahl-Encodern in einem einstufigen Getriebe soll festgestellt werden, ob künstliche Zahnschäden in einem Getriebe zu detektieren sind. An einem Getriebe-Schwingungs-Prüfstand ist ein einstufiges Getriebe mit mehreren zusätzlichen magnetoresistiven Drehzahl-Encoder ausgerüstet. Im Getriebe sind unteranderem künstlich geschädigte Ritzel im Betrieb. Ziel ist es mit den Signalen der MR-Drehzahl-Encoder die künstlichen Schäden der Ritzel zu identifizieren. Dazu wird eine Schwingungsanalyse des Getriebes durchgeführt. Auf der Grundlage, dass der Zahneingriff als ein schwingungsfähiges System zu modellieren ist, werden Frequenzen identifiziert auf welche das Zahnradpaar des einstufigen Getriebes Einfluss hat. Ein abgeleitetes Ordnungsspektrum aus der Drehzahl der MR-Drehzahl-Encoder stellt die Grundlage der Schwingungsanalyse dar, um Ritzelschäden zu identifizieren. Der Getriebe-Schwingungs-Prüfstand ist im Vier-Quadranten-Betrieb im Einsatz, um die nötige Datenbasis für das Vorhaben zu schaffen. Es werden vier baugleiche Ritzel vermessen. Ein Fokus der Arbeit liegt zudem auf Einflüssen der Montage des Getriebes und deren Auswirkung auf das schwingungsfähige System Zahneingriff. Durch eine statistische Auswertung wird verdeutlicht, welche Art der Montage für das Vorhaben zulässig ist. Eine Methode zur Identifikation von Zahnschäden in Getrieben wird entwickelt. Durch die Analyse der Amplitudenmodulation an Harmonischen der Wellendrehfrequenzen, werden Zahnschäden erkannt und unterschieden. Dies wird an am Prüfstand aufgenommenen Daten demonstriert.
Impact of the 2 Fe unit cell on the electronic structure measured by ARPES in iron pnictides
Creators: name: Brouet, V.
name: Jensen, M. Fuglsang
name: Lin, Ping-Hui
name: Taleb-Ibrahimi, A.
name: Fèvre, P. Le
name: Bertran, F.
name: Lin, Chia-Hui
name: Ku, Wei
name: Colson, D.
name: Forget, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In all iron pnictides, the positions of the ligand alternatively above and below the Fe plane create 2 inequivalent Fe sites. This results in 10 Fe 3d bands in the electronic structure. However, they do not all have the same status for an ARPES experiment. There are interference effects between the 2 Fe that modulate strongly the intensity of the bands and that can even switch their parity. We give a simple description of these effects, notably showing that ARPES polarization selection rules in these systems cannot be applied by reference to a single Fe ion. We show that ARPES data for the electron pockets in Ba(Fe0.92Co0.08)2As2 are in excellent agreement with this model. We observe both the total suppression of some bands and the parity switching of some other bands. Once these effects are properly taken into account, the structure of the electron pockets, as measured by ARPES, becomes very clear and simple. By combining ARPES measurements in different experimental configurations, we clearly isolate each band forming one of the electron pockets. We identify a deep electron band along one ellipse axis with the dxy orbital and a shallow electron band along the perpendicular axis with the dxz/dyz orbitals, in good agreement with band structure calculations. We show that the electron pockets are warped as a function of kz as expected theoretically, but that they are much smaller than predicted by the calculation.
Understanding and supporting transitions with large display applications
Creators: name: Tang, Anthony
Publisher: name: University of British Columbia
Year: 2010

description: Interactive large displays offer exciting new opportunities for collaboration and work. Yet, their size will fundamentally change how users expect to use and engage with computer applications: a likely reality is that such displays will be used by multiple users for multiple simultaneous tasks. These expectations demand a new approach for application design beyond the conventional desktop application model, where applications are single-user, and intended to support a subset of user tasks. In this research, we develop such a framework based on the premise that large display applications should support transitions—users’ desires to shift between multiple tasks and activities. We build this framework from models of how traditional large surfaces such as whiteboards are used to facilitate multiple tasks—often simultaneously. Based on studies of users’ whiteboard use, we construct a classification scheme of users’ activities with whiteboards, and the role of whiteboards in supporting the transitions between these activities. From a study of meeting room activity, we then develop a classification for collocated activity around traditional surfaces. We further develop models of how users’ needs change during their use of large display applications, exploring two contexts: a digital tabletop application for focused collaboration, and a public large display. These studies reveal how users engage and disengage with one another during collaborative work, and the dynamic needs of bystanders. Next, we design and evaluate a prototype that supports transitions between tasks in a scheduling activity using viewing changes. The results demonstrate that users transition between related tasks during such activities, and that viewing changes can support these transitions. Finally, we describe a design space for supporting transitions in large display applications. Taken together, the findings of this research illustrate the fundamental need to develop a new framework for designing large display applications. This work provides a step in this direction by providing rationale and empirical evidence for supporting transitions in this framework. In so doing, it suggests that we realign designers’ efforts from the predominant desktop-centric model of application development, and instead to a model that engenders smooth transitions between multiple, related activities.
Access to Forest Lands and Resources: The Case of Aboriginal Peoples in Alberta
Creators: name: Passelac-Ross, Monique
Publisher: name: Canadian Institute of Resources Law
Year: 2008

description: The development of natural resources is central to the province of Alberta's economic growth and prosperity. Most of these resources - conventional oil and gas, oil sands, forests, coal, water - are owned by the province. They are managed under a highly centralized resource management regime that provides relatively few opportunities for local communities to influence decision-making. This is notably the case with respect to Crown forests, 89% of which are owned by the provincial government and allocated under long-term forest tenures to large integrated forest companies. The paper focuses on the situation of Aboriginal communities located within the commercial forest area of the province. It seeks to assess the extent and scope of their access to Crown forest lands.
Strategy Independent Reduction Lengths in Rewriting and Binary Arithmetic
Creators: name: Zantema, Hans
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: In this paper we give a criterion by which one can conclude that every reduction of a basic term to normal form has the same length. As a consequence, the number of steps to reach the normal form is independent of the chosen strategy. In particular this holds for TRSs computing addition and multiplication of natural numbers, both in unary and binary notation.
description: In Proceedings WRS 2011, arXiv:1204.5318
Effects of edge functional groups of graphene oxide membrane on the filtration process in microscale.
Creators: name: QIU, RUOSANG
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 400409
subject: Separation technologies

description: Molecular dynamics simulation is utilized in this project to numerically reproduce the filtration process of edge functionalized layer-by-layer graphene oxide membranes because they have a uniform structure to achieve superior separation performance. Water, NaCl, LiCl, and KCl solutions are separately filtrated. The edge functional groups, which include carboxyl, hydroxyl, and hydrogen are observed geometrically and interactionally affecting the membrane performance under the influence of membrane structures. Several mechanisms in which edge functionalized membrane could affect water transport and ion sieving performance are firstly uncovered. On those bases, strategies are proposed for better filtration performance in the future.
A phase 2A trial of the safety and tolerability of increased dose rifampicin and adjunctive linezolid, with or without aspirin, for human immunodeficiency virus-associated tuberculous meningitis (The LASER-TBM trial).
Creators: name: Davis, Angharad G
name: Wasserman, Sean
name: Stek, Cari
name: Maxebengula, Mpumi
name: Liang, C Jason
name: Stegmann, Stephani
name: Koekemoer, Sonya
name: Jackson, Amanda
name: Kadernani, Yakub
name: Bremer, Marise
name: Daroowala, Remy
name: Aziz, Saalikha
name: Goliath, Rene
name: Sai, Louise Lai
name: Sihoyiya, Thandi
name: Denti, Paolo
name: Lai, Rachel PJ
name: Crede, Thomas
name: Naude, Jonathan
name: Szymanski, Patryk
name: Vallie, Yakoob
name: Banderker, Ismail Abbas
name: Moosa, Muhammed S
name: Raubenheimer, Peter
name: Candy, Sally
name: Offiah, Curtis
name: Wahl, Gerda
name: Vorster, Isak
name: Maartens, Gary
name: Black, John
name: Meintjes, Graeme
name: Wilkinson, Robert J
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: subject: Model organisms
subject: Infectious Disease
subject: Human Biology & Physiology
subject: Immunology
subject: FOS: Clinical medicine

description: BACKGROUND: Drug regimens which include intensified antibiotics alongside effective anti-inflammatory therapies may improve outcomes in Tuberculous Meningitis (TBM). Safety data on their use in combination and in the context of HIV is needed to inform clinical trial design. METHODS: We conducted a phase 2 open-label parallel-design RCT to assess safety of high-dose rifampicin, linezolid and high-dose aspirin in HIV-associated TBM. Participants were randomised (1.4:1:1) to three treatment arms (arm 1, standard of care (SOC); arm 2 SOC + additional rifampicin (up to 35mg/kg/day)) + linezolid 1200mg/day reducing after 28/7 to 600mg/day; arm 3, as per arm 2 + aspirin 1000mg/day) for 56 days, when the primary outcome of adverse events of special interest (AESI) or death was assessed. RESULTS: 52 participants with HIV-associated TBM were randomised. 59% had mild disease (MRC Grade 1) vs 39% (Grade 2) vs 2% (Grade 3). 33% had microbiologically-confirmed TBM; 41% 'possible', 25% 'probable'. AESI or death occurred in 10/16 (63%) (arm 3) vs 4/14 (29%) (arm 2) vs 6/20 (30%) (arm 1) (p = 0.083). The cumulative proportion of AESI or death (Kaplan-Meier) demonstrated worse outcomes in arm 3 vs arm 1 (p = 0.04), however only one event in arm 3 was attributable to aspirin and was mild. There was no difference in efficacy (modified Rankin scale) at day 56 between arms. CONCLUSIONS: High-dose rifampicin and adjunctive linezolid can safely be added to SOC in HIV-associated TBM. Larger studies are required to evaluate whether potential toxicity associated with these interventions, particularly high-dose aspirin, is outweighed by mortality or morbidity benefit.
Improving Advanced Polymer-Based Mixed Matrix Membrane Performance for Gas Separation
Creators: name: HOU, RUJING
Publisher: name: Monash University
Year: 2020
Subjects: classificationCode: 400409
subject: Separation technologies

description: The work of this thesis focuses on membrane technology for gas separation due to the merit of high energy efficiency relative to conventional techniques. Advanced polymers with high fractional free volume and highly porous nanoparticles with full organic framework are selected to fabricate mixed matrix membranes (MMMs). Efforts to further improve MMMs gas separation performance include solvent choice, nanoparticle size, polymer conformation, and synergistic methodology. Results demonstrate that compatible solvent, small particle size with homogenous dispersion in the polymer matrix, enhanced polymer and additive interaction, and the corresponding gas performance. Similar effects are observed for polymer conformation and synergistic methods.
The contribution from blazar cascade emission to the extragalactic gamma-ray background: What a role does the extragalactic magnetic field play?
Creators: name: Yan, Dahai
name: Zeng, Houdun
name: Zhang, Li
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We estimate the contribution to the extragalactic gamma-ray background (EGRB) from both intrinsic and cascade emissions produced by blazars using a simple semi- analysis method for two models of the blazar gamma-ray luminosity function (GLF). For the cascade emission, we consider two possible contributions: one is due to that the flux of the cascade emission is lower than the Fermi LAT sensitivity (case I), which is independent on the extragalactic magnetic field (EGMF), another is due to the fact that the flux of the cascade emission is larger than the Fermi LAT sensitivity but the emission angle is larger than LAT point-spread-function (PSF) angle (case II), which depends on the EGMF. Our results indicate that (1) blazar contribution to the EGRB is dominant although it depends on the GLF model and the EGMF; (2) the EGMF plays an important role in estimating the contribution from the cascade emission produced by blazars, the contribution from the cascade emission will significantly alter the EGRB spectrum when the strength of the EGMF is large enough (say BEGMF > 10-12 G); and (3) since the cascade emission in case II reaches a saturation when the strength of the EGMF is ? 10-11 G, it is very possible that the contribution from the cascade emission produced by blazars can be considered as another method to probe the upper limit of the strength of the EGMF.
description: 6 pages, 3 figures. Accepted for publication in MNRAS
Fabrication and modelling of an all-printed PEDOT:PSS supercapacitor on a commercial paper
Creators: name: Yoo, Dan Sik
Publisher: name: University of British Columbia
Year: 2010

description: Supercapacitors demonstrate substantial improvement in charge storage capability compared to the conventional capacitors. With the emergence of printed electron- ics such as RFID tags, smart cards, electronic paper, and wearable electronics, printed energy storage devices are desirable. Therefore, a flexible and printable supercapacitor with a PEDOT:PSS electrode is fabricated with inkjet micropatterning technology. Electroanalytical measurement techniques are employed to characterize the performance of the printed supercapacitor. It has been found that addition of the surfactant (Triton X-100) increases the porosity of the PE- DOT:PSS electrode. A volume capacitance of 9.36 F/cm₃ (adding surfactant) and 9.09 F/cm₃ (without adding surfactant) are measured with cyclic voltammetry. The two devices have different capacitor charging times, e.g., 50.46 s for electrode added surfactant and 112.9 s for the electrode without adding surfactant. In order to investigate the rate limiting factors of capacitor charging, electro- chemical impedance measurements and equivalent circuit modelling is utilized. Instead of using a constant phase element (CPE), a multiple time constant model is proposed in order to explain the physical origin of the distributed time constant behaviour. Thickness variation of the PEDOT:PSS electrode is assumed as a primary reason for the distributed time constants and thus actual thickness variation is incorporated in the modelling. Data fitting with the measured impedance are consistent with this assumption. However. it also has been found that there are more factors distributing capacitances than just variations in thickness. A lognormal distribution function (LNDF) is utilized in order to further investigate the relationship between the distributed capacitance and the capacitor charging. It is found that the capacitance distribution likely influence the charging. Previous experimental results demonstrate that the distributed capacitance is the physical cause of the distributed time constant behaviour in electrochemical impedance measurement. However, this is the first analytical report proving the relationship between the distributed time constant behaviour and a thickness de- pendent capacitance distribution.
Energy Extraction and Particle Acceleration Around Rotating Black Hole in Horava-Lifshitz Gravity
Creators: name: Abdujabbarov, Ahmadjon
name: Ahmedov, Bobomurat
name: Ahmedov, Bahodir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Penrose process on rotational energy extraction of the black hole (BH) in the original non-projectable Hořava-Lifshitz gravity is studied. The strong dependence of the extracted energy from the special range of parameters of the Hořava-Lifshitz gravity, such as parameter $Λ_W$ and specific angular momentum $a$ has been found. Particle acceleration near the rotating BH in Hořava-Lifshitz gravity has been studied. It is shown that the fundamental parameter of the Hořava-Lifshitz gravity can impose limitation on the the energy of the accelerating particles preventing them from the infinite value.
description: 6 pages, 3 figures, accepted for publication in Physical Review D
Uniquely D-colourable digraphs with large girth
Creators: name: Harutyunyan, Ararat
name: Kayll, P. Mark
name: Mohar, Bojan
name: Rafferty, Liam
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15 (Primary) 05C20, 60C05 (Secondary)

description: Let C and D be digraphs. A mapping $f:V(D)\to V(C)$ is a C-colouring if for every arc $uv$ of D, either $f(u)f(v)$ is an arc of C or $f(u)=f(v)$, and the preimage of every vertex of C induces an acyclic subdigraph in D. We say that D is C-colourable if it admits a C-colouring and that D is uniquely C-colourable if it is surjectively C-colourable and any two C-colourings of D differ by an automorphism of C. We prove that if a digraph D is not C-colourable, then there exist digraphs of arbitrarily large girth that are D-colourable but not C-colourable. Moreover, for every digraph D that is uniquely D-colourable, there exists a uniquely D-colourable digraph of arbitrarily large girth. In particular, this implies that for every rational number $r\geq 1$, there are uniquely circularly r-colourable digraphs with arbitrarily large girth.
description: 21 pages, 0 figures To be published in Canadian Journal of Mathematics
Evolution of a Modular Software Network
Creators: name: Fortuna, Miguel A.
name: Bonachela, Juan A.
name: Levin, Simon A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Operating Systems (cs.OS)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: "Evolution behaves like a tinkerer" (Francois Jacob, Science, 1977). Software systems provide a unique opportunity to understand biological processes using concepts from network theory. The Debian GNU/Linux operating system allows us to explore the evolution of a complex network in a novel way. The modular design detected during its growth is based on the reuse of existing code in order to minimize costs during programming. The increase of modularity experienced by the system over time has not counterbalanced the increase in incompatibilities between software packages within modules. This negative effect is far from being a failure of design. A random process of package installation shows that the higher the modularity the larger the fraction of packages working properly in a local computer. The decrease in the relative number of conflicts between packages from different modules avoids a failure in the functionality of one package spreading throughout the entire system. Some potential analogies with the evolutionary and ecological processes determining the structure of ecological networks of interacting species are discussed.
description: To appear in PNAS
Domains of doping in graphene on polycrystalline gold: first-principles and scanning tunneling spectroscopy studies
Creators: name: Slawinska, J.
name: Wlasny, I.
name: Dabrowski, P.
name: Klusek, Z.
name: Zasada, I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the graphene/gold interface by means of density functional theory (DFT) and scanning tunneling spectroscopy (STS). Weak interaction between graphene and the underlying gold surface leaves unperturbed Dirac cones in the band-structure, but they can be shifted with respect to the Fermi level of the whole system, which results in effective doping of graphene. DFT calculations revealed that the interface is extremely sensitive to the adsorption distance and to the structure of metal's surface, in particular strong variation in doping can be attributed to the specific rearrangements of substrate's atoms, such as the change in the crystallographic orientation, relaxation or other modifications of the surface. On the other hand, STS experiments have shown the presence of energetic heterogeneity in terms of the changes in the local density of states (LDOS) measured at different places on the sample. Randomly repeated regions of zero-doping and p-type doping have been identified from parabolic shape characteristics and from well defined Dirac points, respectively. The doping domains of graphene on gold seem to be related to the presence of various types of the surface structure across the sample. DFT simulations for graphene interacting with Au have shown large differences in doping induced by considered structures of substrate, in agreement with experimental findings. All these results demonstrate the possibility of engineering the electronic properties of graphene, especially tuning the doping across one flake which can be useful for applications of graphene in electronic devices.