cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Designing Games For Teaching Typography
Creators: name: Khurana, Puja
Publisher: name: Emily Carr University of Art and Design
Year: 2017
Subjects: Typography
Teaching

description: This thesis investigates interactive and engaging learning experiences to teach fundamentals of typography to anyone who otherwise does not have any formal education of typography. The thesis uses two different approaches to do so–one where learning outcomes and objectives are direct, and another in which they are indirect. The first approach explores games that can be used to effectively educate users about the fundamentals of typography, like anatomy of type by understanding the structure of letterforms, and classification of typography. The second approach investigates how an app might be used to learn about typography from a user’s surroundings. Design research methods include a studio-based approach, where evaluative testing and observational trials were core sources of insights. Other methods include interviews, surveys and precedent reviews. These insights further inform studio prototypes of varying fidelities and ultimately, final mockups for the proposed forms of engagement. Thus, this project hopes to make typography accessible to everyone who is interested in learning about typography by using a variety of physical and digital mediums.
description: Submitted in partial fulfillment of the requirements for the degree of Master of Design.
Boundary-induced violation of the Dirac fermion parity and its signatures in local and global tunneling spectra of graphene
Creators: name: Tkachov, Grigory
name: Hentschel, Martina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Extended defects in graphene, such as linear edges, break the translational invariance and can also have an impact on the symmetries specific to massless Dirac-like quasiparticles in this material. The paper examines the consequences of a broken Dirac fermion parity in the framework of the effective boundary conditions varying from the Berry-Mondragon mass confinement to a zigzag edge. The parity breaking reflects the structural sublattice asymmetry of zigzag-type edges and is closely related to the previously predicted time-reversal symmetric edge states. We calculate the local and global densities of the edge states and show that they carry a specific polarization, resembling, to some extent, that of spin-polarized materials. The lack of the parity leads to a nonanalytical particle-hole asymmetry in the edge-state properties. We use our findings to interpret recently observed tunneling spectra in zigzag-terminated graphene. We also propose a graphene-based tunneling device where the particle-hole asymmetric edge states result in a strongly nonlinear conductance-voltage characteristics, which could be used to manipulate the tunneling transport.
description: 8 pages, 5 figures, to be published in Phys. Rev. B
Succinate metabolism and tricarboxylic acid cycle activity
Creators: name: Tiwari, Narayan Prasad
Publisher: name: University of British Columbia
Year: 2011

description: Although the importance of tricarboxylic acid cycle activity in the metabolism of aerobic bacteria is well established, detailed studies on the utilization of intermediates of the cycle designed to assess the nature, importance and control of the enzymes concerned have not been performed with pseudomonads. Results of this investigation have shown that Pseudomonas aeruginosa ATCC 9027 lacks NAD or NADP linked L-malic dehydrogenase. Studies with cell fractions have shown that an NAD and NADP independent, particulate L-malic dehydrogenase catalyses the oxidation of L-malic acid to oxalacetic acid. The labelling patterns of citrate obtained from succinate-1,4-¹⁴ C and succinate-2,3-¹⁴ C have demonstrated the involvement of the particulate malic dehydrogenase and have excluded any other possibility. Phosphofructokinase could not be detected in the cell-free extract preparations and thus accounting for the non-functional Embden-Meyerhof pathway in this organism. Cells grown in succinate medium either do not have or have extremely low levels of glucose metabolizing enzymes. The glucose effect on tricarboxylic acid cycle enzymes was not observed. Further, the addition of α-keto- glutarate and glutamate to the medium did not repress these enzymes. These observations suggest that tricarboxylic acid cycle activity is of special importance for growth and metabolism in pseudomonads. The data have also indicated that during growth in a succinate medium, pentose synthesis must occur by the action of transketolase upon compounds derived from tricarboxylic acid cycle intermediates. It has been shown that both the glucose permease and the glucose metabolizing enzymes were induced simultaneously on shift from succinate to glucose medium. The glucose permease was found to be very specific since glucose uptake was not inhibited even in the presence of 100-fold excess of α-CH glucoside, 2-deoxyglucose, galactose, fructose or mannose. Particulate malic dehydrogenase was inhibited by adenine nucleotides while it was activated by GTP and GDP. The mechanism of this regulation is not clear, however, it is obviously important in the control of tricarboxylic acid cycle activity. Addition of glutamate to the medium repressed the synthesis of glutamic dehydrogenase. High levels of malic enzyme were maintained on growth in glucose and succinate media, whereas the levels were low in acetate medium. These observations demonstrated the capacity of the organism to regulate the synthesis of enzymes in response to the particular environment. Tricarboxylic acid cycle intermediates and glyoxylate have been found to exert "fine control" over the activities of isocitrate dehydrogenase and isocitrate lyase in such a way that flow of isocitrate through the tricarboxylic acid cycle and the glyoxylate cycle is precisely regulated to suit the needs of the cell.
title: ปัจจัยที่มีอิทธิพลต่อประสิทธิผลการบริหารจัดการ งบประมาณแบบมีส่วนร่วมขององค์กรปกครองส่วนท้องถิ่นในเขตภาคตะวันอออกเฉียงเหนือตอนกลาง
Creators: name: ประดิษฐ์ ศรีประไหม
Publisher: name: สาขารัฐประศาสนศาสตร์ คณะศิลปศาสตร์ มหาวิทยาลัยกาฬสินธุ์
publisherIdentifierScheme: ROR
Year: 2019
Subjects: การบริหารจัดการงบประมาณแบบมีส่วนร่วม
ประสิทธิผล
องค์กรปกครองส่วนท้องถิ่น

description: วารสารการบริหารปกครอง, 8, 1, 97-118
Sparticle masses in deflected mirage mediation
Creators: name: Choi, Kiwoon
name: Jeong, Kwang Sik
name: Nakamura, Shuntaro
name: Okumura, Ken-Ichi
name: Yamaguchi, Masahiro
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the sparticle mass patterns that can be realized in deflected mirage mediation scenario of supersymmetry breaking, in which the moduli, anomaly, and gauge mediations all contribute to the MSSM soft parameters. Analytic expression of low energy soft parameters and also the sfermion mass sum rules are derived, which can be used to interpret the experimentally measured sparticle masses within the framework of the most general mixed moduli-gauge-anomaly mediation. Phenomenological aspects of some specific examples are also discussed.
description: 43 pages, 17 figures, references added
Learning to Play Again: Playground Designs That Create Opportunities for Spontaneous and Unstructured Play
Creators: name: Quah, Peng Ho
Publisher: name: Emily Carr University of Art and Design
Year: 2017
Subjects: Children
Playgrounds
Play
Design

description: The benefits and necessity of play for children have been well researched and documented. This project looks into unstructured and spontaneous play—activities that could encourage confidence and creativity—in the context of contemporary outdoor playgrounds and adventure playgrounds, and how playground instructions (both overt and covert) and the general design characteristics of these playgrounds affect the way children play around them. The proposal developed within this project suggests possible ways of merging the best characteristics of adventure and contemporary playgrounds into solutions that offer increased opportunities for spontaneous and unstructured play for children from a speculative design standpoint. It also touches on additional considerations that could situate the proposal into more plausible solutions: for example, reconfiguring an existing site’s components to enhance it, or utilizing an otherwise unused parcel of land, amongst others.
description: Submitted in partial fulfillment of a Master of Design degree.
description: Risky play
description: Unstructured play
description: Spontaneous play
description: Pretend play
description: Creative play
description: Playground design
description: Adventure playgrounds
description: Nature
description: Outdoors
description: Structured activities
The Rājbiḍi The Royal Road
Creators: name: RODRIGUES, TENSING CARLOS
Publisher: name: figshare
Year: 2021
Subjects: subject: History
subject: Anthropology
subject: FOS: Sociology
subject: Archaeology
subject: Geography
subject: Sociology

description: It’s when we connect Cāṁdar to Kurdī that we understand the strategic location of the former. As a port, perhaps there were better choices in the Zuari basin; leave alone the sites close to the mouth of the river; there was, for instance Rachol or Rāitūr. But it was the ease of trans-Sahyādri access that perhaps weighed in favour of Cāṁdar; Kuśāvati on which Cāṁdar is located, and Saḷāuli, the other major tributary of river Zuari, must have provided easy access to Kurdī; both of these were probably navigable for smaller craft.
Sensory Cards: Fostering Empathy and Connection within Community Groups
Creators: name: Gomes Franca, Natália
Publisher: name: Emily Carr University of Art and Design
Year: 2017
Subjects: Design
Empathy
Collaboration

description: The ability to work and collaborate with different groups has become an essential skill in our highly connected and complex society. We face challenges today that cannot be fixed by a single individual and we need to learn how to collaborate on a much greater scale. People are starting to see the value in building communities based on strong relationships and connections, and yet working together is not always easy. This thesis project navigates from the broader context of community building to the local and personal space of relationships. It explores the potential of dialogic artifacts as a means for building empathy and connection within community groups. A series of reflective and exploratory projects were conducted in order to facilitate immersion into the topic and the access to tacit, intuitive knowledge. Psychologists and group facilitators were engaged through participatory design methods and brought important insights on how artifacts can support empathy in human interactions. is research led to the Sensory Cards, a set of visual and tactile cards with suggested guidelines designed to facilitate the communication—access, expression and understanding—of feelings and emotions in community groups.
description: Submitted in partial fulfillment for the degree of Master of Design.
description: Design for empathy
description: Community building
description: Collaborative design
description: Conversation and dialogic artifacts
Reforming IKEA: Do-it-Yourself Projects and Everyday Objects in Disposable Culture
Creators: name: Harkness, Matthew
Publisher: name: Emily Carr University of Art and Design
Year: 2017
Subjects: Design
Experiential learning
Consumption (Economics)
Material culture
Ikea (Firm)
Furniture

description: This project aims to gain an understanding of the relationships people have with everyday, domestic objects inside their urban living spaces using Do-it-Yourself (DIY) furniture making projects. Throughout the project, new knowledge is generated using hands-on making activities as a form of Research through Design (RtD). The primary objectives of this research are to open up and encourage these kinds of Do-it-Yourself, experiential learning activities as resources for people to draw on in their everyday lives. By innovating design interventions related to personal well-being and satisfaction with our objects, this project has led to the development of concrete design research exemplars demonstrating how DIY projects can operate as creative resources for everyday design. Through the design, implementation, and study of the artifacts created for DIY home customization, this research aims to support people in experiencing increased levels of self-satisfaction, well-being, and sense of value with their belongings. This investigation focuses on aspects of a domestic object’s importance, becoming an ‘Everyday Designer,’ customization, personalization and their respective relationships to consumption and material culture. As a result of this research, multiple DIY furniture projects and instructional booklets have been created to provide opportunities for everyone from non-designers to experienced makers to conduct a personal material exploration. Together with this creative act of hands-on making, everyday design practices allow people to reflect on the objects they own and why, while also achieving an increased sense of well-being and agency towards their domestic objects.
description: Submitted in partial fulfillment of a Master of Design Degree.
description: Everyday objects
description: Making
description: Research through Design
description: Do-it-Yourself projects
description: Experiential learning
description: Design research
description: Customization
description: Everyday designers
description: Personalization
description: Consumption
description: Material culture
description: IKEA
Improved approximation guarantees for weighted matching in the semi-streaming model
Creators: name: Epstein, Leah
name: Levin, Asaf
name: Mestre, Julian
name: Segev, Danny
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We study the maximum weight matching problem in the semi-streaming model, and improve on the currently best one-pass algorithm due to Zelke (Proc. of STACS2008, pages 669-680) by devising a deterministic approach whose performance guarantee is 4.91+epsilon. In addition, we study preemptive online algorithms, a sub-class of one-pass algorithms where we are only allowed to maintain a feasible matching in memory at any point in time. All known results prior to Zelke's belong to this sub-class. We provide a lower bound of 4.967 on the competitive ratio of any such deterministic algorithm, and hence show that future improvements will have to store in memory a set of edges which is not necessarily a feasible matching.
Democratizing Software Design Through Functional Individualization of Creative Software
Creators: name: Selimoglu, Can
Publisher: name: Emily Carr University of Art and Design
Year: 2017
Subjects: Human-computer interaction
Self-adaptive software
Visual programming (Computer science)
Intelligent user interfaces
Open source software
Modularity

description: The evolution of creative software is informed by the traditional computer-science methods of development. This results in creation of generic software with task-oriented perspective. User testing data and feedback that sampled from different individuals is used in a way that ignores people's individual differences. Creative software like Adobe Photoshop have become the digital toolboxes of digital designers, similar to the physical toolbox of a craftperson. While physical craftspeople have the liberty to choose and create each one of their tools to individualize the physical toolbox, digital toolboxes tend to be collections of immutable software tasks, packaged into user interfaces that allow for minimal amounts of customization. The creative software user is not involved in the part of the software development conversation due to high levels of entry to learning programming, apart from suggesting software features in crowded web forums. This issue has not been addressed by the existing open source software culture. This research contemplates a systematic approach for enabling all users to democratically participate in the design process of creative software, individualize and extend the application logic in order to bridge the gap between their intent and the output. A new creative software suite that is open to future appropriation through modularity and social extendability for the purpose of dynamically adapting to individual differences is designed and presented as a proof of concept.
description: Submitted in partial fulllment of the degree of Master of Design
description: HCI
description: Adaptive software learning
description: Direct manipulation
description: Visual programming
description: Appropriation of technology
description: Functional individualization
description: Online collaboration
description: individual differences
description: intelligent user interfaces
description: Open source
description: Creative software
description: Functional modularization
Kelten bei dem Laienforscher Christian Keferstein (1784 –1866)
Creators: name: Schwartz, Verena
Publisher: name: VML Verlag Marie Leidorf
Year: 2021
Subjects: subject: Fachgeschichte
subject: Kelten
subject: Keltomanie
subject: Nationalismus
subject: 19. Jahrhundert
subject: 900

description: Vor und während der Institutionalisierungsphase altertums- und sprachwissenschaftlicher Forschungen im 19. Jh. wurde der Keltenbegriff sowohl von ausgebildeten Sprach- und Altertumswissenschaftlern als auch von sogenannten Keltomanen benutzt. Christian Keferstein gehörte zu den Letztgenannten. Aus wohlhabenden Verhältnissen stammend, jedoch ohne fachwissenschaftliche Ausbildung, beschäftigte er sich zunächst mit Geologie und Geognostik und widmete sich später eingehend den Kelten, die er als das Urvolk Europas ansah. Neben kleineren Artikeln veröffentlichte er zwischen 1846 und 1851 sein mehrbändiges Hauptwerk „Ansichten ueber die keltischen Alterthümer, die Kelten überhaupt und besonders in Teutschland, so wie den keltischen Ursprung der Stadt Halle“. Der vorliegende Beitrag möchte das vergessene Werk Christian Kefersteins vorstellen und einige Aspekte der möglichen Motivation für seine Keltomanie analysieren.
Is the Dark Disc contribution to Dark Matter Signals important ?
Creators: name: Ling, Fu-Sin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent N-body simulations indicate that a thick disc of dark matter, co-rotating with the stellar disc, forms in a galactic halo after a merger at a redshift $z<2$. The existence of such a dark disc component in the Milky Way could affect dramatically dark matter signals in direct and indirect detection. In this letter, we discuss the possible signal enhancement in connection with the characteristics of the local velocity distributions. We argue that the enhancement is rather mild, but some subtle effects may arise. In particular, the annual modulation observed by DAMA becomes less constrained by other direct detection experiments.
Effects of standard and modified gravity on interplanetary ranges
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We numerically investigate the impact on the two-body range by several Newtonian and non-Newtonian dynamical effects for some Earth-planet (Mercury, Venus, Mars, Jupiter, Saturn) pairs in view of the expected cm-level accuracy in some future planned or proposed interplanetary ranging operations (abridged).
description: LaTex, World Scientific style, 46 pages, 55 figures, 1 table, 57 references. Version in press in International Journal of Modern Physics D (IJMPD)
Fracture development in wood resulting from bending stresses and detected using the acoustic emission phenomenon
Creators: name: Adams, Roy Douglas
Publisher: name: University of British Columbia
Year: 2011

description: A new approach to the problem of failure prediction of wood components and structures is that of fracture mechanics. In order to implement this approach knowledge of flaw growth (or crack propagation) in wood subjected to various stress systems and environmental conditions is required. The extension of flaws is accompanied by the release of energy in the form of acoustic or stress wave emissions, which can be detected and have been found to be reliable indicators of crack growth. Using acoustic emissions as a measure, flaw growth was investigated in stressed bending specimens of three species. The test pieces contained a variety of knot configurations, seasoning checks and resin pockets. Three wood moisture contents were used; specimen size was 2-by-4-inch (nominal) cross section and 50-inch length. A detailed description of the system used for detecting, measuring and recording acoustic emissions is given. Emission activity was measured using an electronic counter. Simultaneous count, load and deflection measurements were recorded and count-deflection and load-deflection curves plotted. The association between acoustic emissions and crack growth is discussed. Four types of integrated count- deflection patterns were found, which generally exhibited two common features. Firstly, a rate change point, where the count rate increased rapidly, and secondly a count increase just prior to failure. The rate change point was approximately coincident with the proportional limit in the load-deflection curve, suggesting an association between elastic behaviour and microfailure development. Several qualitative relationships between the count and load curves are presented. A correlation between stable crack growth and the entire load-deflection curve is postulated. The presence of checks and resin pockets affected the microfailure pattern, shown by increased acoustical activity, without appreciably influencing modulus of rupture. Green specimens for the most part produced lower counts than drier ones. Also clear or essentially clear boards exhibited lower emission counts. Species differences were not apparent. The estimation of modulus of rupture employing parameters from the count-deflection curves is discussed and compared to that using modulus of elasticity. Precision of the prediction was not improved using count parameters. A method for determining the direction of crack propagation in a fractured bending member is described.
The short story in Canada : development from 1935 to 1955 with attached bibliography
Creators: name: MacLure, Evelyn Joyce
Publisher: name: University of British Columbia
Year: 2011

description: This thesis concerns the development of the short story in Canada from 1935 to 1955. The political, social and economic background has been briefly surveyed and related to the developments in the story in character, subjects, theme, and form. Each of the chapters deals with one of the four periods into which this development may be divided. In each chapter collections, anthologies, and stories from periodicals have been discussed. Chapter I, 1935 - 1940, studies the transition which was taking place in the depression period as the story shifted from man in conflict with nature to man in society. Chapter II, 1946 – 1950, reveals that, in the war years, the story was often concerned with social protest, although there was some opposition to this type. Little magazines became an important influence in this period. Chapter III, 1946 - 1950, shows that in the post-war period, the writers often built their stories around a psychological or psychoanalytic insight into characters. Chapter IV, 1950 - 1955, saw a lull in story writing; however, in those which were written, a greater complexity in character and a centering on ideas was present. What is evident in each period is a growing maturity, which is reflected in the types of characters presented, the subjects and themes which they reveal, and the form through which they are presented. In connection with the general development of the story, each chapter has noted also the availability of places for publication within Canada, general Canadian qualities, and regional influences. It has been found that, although the story development was conservative, the authors did usually deal with contemporary Canadian situations and problems. The study concludes with a bibliography. This was compiled because of a lack of Information on the short story in Canada. No separate listing of the collections and anthologies published during this period exists. The only listings of stories in the periodicals are those to be found in the Canadian Periodical Index, which are arranged by author and title. For convenience in the study of development, this list has been compiled chronologically. Sections I and II list respectively the collections and anthologies published by Canadian writers from 1935 to 1955. Section III is a list of the stories published in certain Canadian periodicals. Only those authors who published 5 or more stories in the periodicals examined are included. Section IV is a list of Canadian Periodicals publishing short stories during these years. Section V Is a list of references used in preparing this thesis. This bibliography is useful in determining the relative importance of the periodicals which have contained stories, in comparing the number of stories in each period, and in tracing the activity of the authors.
title: “Look to the Champions of Freedom for All” How Libraries Can Advance Democracy Through Opening Access
Creators: name: Watkinson, Charles
name: McCready, Kate
Publisher: name: American Library Association
Year: 2025
Subjects: subject: open access
subject: monographs
subject: libraries
subject: publishers
subject: Information and Library Science
subject: Social Sciences

description: The debate surrounding the transition to an open-access scholarly communications environment is familiar in library and publishing circles. We often find ourselves entangled in the nuances of policy and implementation, risking losing sight of the broader possibilities that open access presents. As libraries successfully facilitate more scholarly works becoming freely accessible, we face a pivotal question: “What now?” or (more wordily) “How can these investments in openness be harnessed and expanded to advance the public missions of our institutions?” T his paper argues that open access is not just a logistical achievement, but a powerful tool for promoting democratic ideals. Through a series of case studies, this paper illustrates actionable strategies for leveraging open-access resources to foster democratic engagement and expand informed participation locally, nationally, and globally.
title: การจัดการเชิงกลยุทธ์เพื่อพัฒนาการท่องเที่ยวโดยชุมชน เทศบาลตำบลหนองสองห้อง จังหวัดขอนแก่น
Creators: name: จินตนา กำแพงศิริชัย
Publisher: name: สาขารัฐประศาสนศาสตร์ คณะศิลปศาสตร์ มหาวิทยาลัยกาฬสินธุ์
publisherIdentifierScheme: ROR
Year: 2019
Subjects: การจัดการเชิงกลยุทธ์
การจัดการท่องเที่ยวโดยชุมชน
หนองสองห้อง

description: วารสารการบริหารปกครอง, 8, 1, 119-139
Rough Sets Determined by Quasiorders
Creators: name: Järvinen, Jouni
name: Radeleczki, Sándor
name: Veres, Laura
Publisher: name: arXiv
Year: 2008
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 06A06 (Primary), 06D10, 06D15, 68T37 (Secondary)

description: In this paper, the ordered set of rough sets determined by a quasiorder relation $R$ is investigated. We prove that this ordered set is a complete, completely distributive lattice. We show that on this lattice can be defined three different kinds of complementation operations, and we describe its completely join-irreducible elements. We also characterize the case in which this lattice is a Stone lattice. Our results generalize some results of J. Pomykala and J. A. Pomykala (1988) and M. Gehrke and E. Walker (1992) in case $R$ is an equivalence.
description: 18 pages, major revision
Spin Hall effect in the kagome lattice with Rashba spin-orbit interaction
Creators: name: Liu, Guocai
name: Zhang, Ping
name: Wang, Zhigang
name: Li, Shu-Shen
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the spin Hall effect in the kagomé lattice with Rashba spin-orbit coupling. The conserved spin Hall conductance $σ_{xy}^{s}$ (see text) and its two components, i.e., the conventional term $σ_{xy}^{s0}$ and the spin-torque-dipole term $σ_{xy}^{sτ}$, are numerically calculated, which show a series of plateaus as a function of the electron Fermi energy $ε_{F}$. A consistent two-band analysis, as well as a Berry-phase interpretation, is also given. We show that these plateaus are a consequence of the various Fermi-surface topologies when tuning $ε_{F}$. In particular, we predict that compared to the case with the Fermi surface encircling the $\mathbfΓ$ point in the Brillouin zone, the amplitude of the spin Hall conductance with the Fermi surface encircling the $\mathbf{K}$ points is twice enhanced, which makes it highly meaningful in the future to systematically carry out studies of the $\mathbf{K}$-valley spintronics.
description: 7 pages, 3 figures. Phys. Rev. B (in press)
Microtesla MRI with dynamic nuclear polarization
Creators: name: Zotev, V. S.
name: Owens, T.
name: Matlashov, A. N.
name: Savukov, I. M.
name: Gomez, J. J.
name: Espy, M. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Medical Physics (physics.med-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Magnetic resonance imaging at microtesla fields is a promising imaging method that combines the pre-polarization technique and broadband signal reception by SQUID sensors to enable in vivo MRI at microtesla-range magnetic fields. Despite significant advances, the potential of microtesla MRI for biomedical imaging is limited by its insufficient signal-to-noise ratio due to a relatively low sample polarization. Dynamic nuclear polarization (DNP) is a widely used approach that allows polarization enhancement by two-four orders of magnitude without an increase in the polarizing field strength. In this work, the first implementation of microtesla MRI with Overhauser DNP and SQUID signal detection is described. The first measurements of carbon-13 NMR spectra at microtesla fields are also reported. The experiments were performed at the measurement field of 96 microtesla with Overhauser enhancement at 3.5 - 5.7 mT field. The Overhauser DNP enabled nuclear polarization enhancement by factor as high as -95 for protons and as high as -200 for carbon-13, corresponding to thermal polarizations at 0.33 T and 1.1 T fields, respectively. These results demonstrate that SQUID-based microtesla MRI can be naturally combined with Overhauser DNP in one system, and that its signal-to-noise performance is greatly improved in this case. They also suggest that microtesla MRI can become an efficient tool for in vivo imaging of hyperpolarized carbon-13, produced by the low-temperature dissolution DNP.
description: 14 pages, 10 figures
Dark Matter Spin-Dependent Limits for WIMP Interactions on 19-F by PICASSO
Creators: name: Archambault, S.
name: Aubin, F.
name: Auger, M.
name: Behnke, E.
name: Beltran, B.
name: Clark, K.
name: Dai, X.
name: Davour, A.
name: Farine, J.
name: Faust, R.
name: Genest, M. -H.
name: Giroux, G.
name: Gornea, R.
name: Krauss, C.
name: Kumaratunga, S.
name: Lawson, I.
name: Leroy, C.
name: Lessard, L.
name: Levy, C.
name: Levine, I.
name: MacDonald, R.
name: Martin, J. -P.
name: Nadeau, P.
name: Noble, A.
name: Piro, M. -C.
name: Pospisil, S.
name: Shepherd, T.
name: Starinski, N.
name: Stekl, I.
name: Storey, C.
name: Wichoski, U.
name: Zacek, V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on $^{19}$F using the superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target masses of $^{19}$F of 65 g and 69 g respectively and a total exposure of 13.75 $\pm$ 0.48 kgd. No dark matter signal was found and for WIMP masses around 24 GeV/c$^2$ new limits have been obtained on the spin-dependent cross section on $^{19}$F of $σ_F$ = 13.9 pb (90% C.L.) which can be converted into cross section limits on protons and neutrons of $σ_p$ = 0.16 pb and $σ_n$ = 2.60 pb respectively (90% C.L). The obtained limits on protons restrict recent interpretations of the DAMA/LIBRA annual modulations in terms of spin-dependent interactions.
description: Revised version, accepted for publication in Phys. Lett. B, 20 pages, 7 figures
A spin foam model for general Lorentzian 4-geometries
Creators: name: Conrady, Florian
name: Hnybida, Jeff
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive simplicity constraints for the quantization of general Lorentzian 4-geometries. Our method is based on the correspondence between coherent states and classical bivectors and the minimization of associated uncertainties. For spacelike geometries, this scheme agrees with the master constraint method of the model by Engle, Pereira, Rovelli and Livine (EPRL). When it is applied to general Lorentzian geometries, we obtain new constraints that include the EPRL constraints as a special case. They imply a discrete area spectrum for both spacelike and timelike surfaces. We use these constraints to define a spin foam model for general Lorentzian 4-geometries.
description: 27 pages, 1 figure; v4: published version
title: การเมืองว่าด้วยการเคลื่อนไหวทางสังคมของภิกษุณี
Creators: name: ประพิศ โบราณมูล
Publisher: name: สาขารัฐประศาสนศาสตร์ คณะศิลปศาสตร์ มหาวิทยาลัยกาฬสินธุ์
publisherIdentifierScheme: ROR
Year: 2019
Subjects: การเมือง
การเคลื่อนไหวทางสังคม
ภิกษุณี

description: วารสารการบริหารปกครอง, 8, 1, 140-159
Counting decomposable univariate polynomials
Creators: name: Gathen, Joachim von zur
Publisher: name: arXiv
Year: 2009
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11T06; 68W30; 12Y05; 05A20

description: A univariate polynomial f over a field is decomposable if it is the composition f = g(h) of two polynomials g and h whose degree is at least 2. We determine the dimension (over an algebraically closed field) of the set of decomposables, and an approximation to their number over a finite field. The tame case, where the field characteristic p does not divide the degree n of f, is reasonably well understood, and we obtain exponentially decreasing error bounds. The wild case, where p divides n, is more challenging and our error bounds are weaker.
title: Downsizing and numbering-up of a fiber fractionator
Creators: name: Schmid, Thomas
name: Radl, Stefan
Publisher: name: TU Wien
Year: 2020
Subjects: cellulose fibers
hydrodynamic fractionation
mini-channel
grade efficiency

description: A length-based hydrodynamic fiber fractionation process has been developed as an energy efficient alternative to existing technologies (e.g., pressure screens) in order to separate short fibers from long fibers of cellulose pulp. Potential limitations to relatively low channel Reynolds numbers were resolved by a radical downsizing of the fractionation device to a channel diameter-to-fiber length ratio of D/L1 ≤ 7. Results of a four-step single-channel fractionator show, that placing of fractionation steps in series is the method of choice to increase fractionator capacity without affecting fractionation selectivity. For the numbering-up of fractionation channels, a novel multi-scale bifurcation distributer was designed, which was capable of (i) sufficiently splitting the feed suspension flow rate, as well as (ii) homogeneously distributing the fiber phase of the suspension. Experiments with a multi-channel fractionator prototype with eight parallel fractionation channels demonstrate the feasibility of our numbering-up strategy.
SN 2006gy: was it really extra-ordinary?
Creators: name: Agnoletto, I.
name: Benetti, S.
name: Cappellaro, E.
name: Zampieri, L.
name: Turatto, M.
name: Mazzali, P.
name: Pastorello, A.
name: Della Valle, M.
name: Bufano, F.
name: Harutyunyan, A.
name: Navasardyan, H.
name: Elias-Rosa, N.
name: Taubenberger, S.
name: Spiro, S.
name: Valenti, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an optical photometric and spectroscopic study of the very luminous type IIn SN 2006gy for a time period spanning more than one year. In photometry, a broad, bright (M_R~-21.7) peak characterizes all BVRI light curves. Afterwards, a rapid luminosity fading is followed by a phase of slow luminosity decline between day ~170 and ~237. At late phases (>237 days), because of the large luminosity drop (>3 mag), only upper visibility limits are obtained in the B, R and I bands. In the near-infrared, two K-band detections on days 411 and 510 open new issues about dust formation or IR echoes scenarios. At all epochs the spectra are characterized by the absence of broad P-Cygni profiles and a multicomponent Halpha profile, which are the typical signatures of type IIn SNe. After maximum, spectroscopic and photometric similarities are found between SN 2006gy and bright, interaction-dominated SNe (e.g. SN 1997cy, SN 1999E and SN 2002ic). This suggests that ejecta-CSM interaction plays a key role in SN 2006gy about 6 to 8 months after maximum, sustaining the late-time-light curve. Alternatively, the late luminosity may be related to the radioactive decay of ~3M_sun of 56Ni. Models of the light curve in the first 170 days suggest that the progenitor was a compact star (R~6-8 10^(12)cm, M_ej~5-14M_sun), and that the SN ejecta collided with massive (6-10M_sun), opaque clumps of previously ejected material. These clumps do not completely obscure the SN photosphere, so that at its peak the luminosity is due both to the decay of 56Ni and to interaction with CSM. A supermassive star is not required to explain the observational data, nor is an extra-ordinarily large explosion energy.
description: 33 pages, 8 figures. Accepted by ApJ. Paper with high-resolution figures available at http://web.oapd.inaf.it/supern/sn2006gy_astroph/agnoletto_2006gy.pdf
title: Simulation Aided Pharmaceutical Hot Melt Extrusion Process Understanding, Setup and Scale-up
Creators: name: Matic, Josip
name: Khinast, Johannes
Publisher: name: TU Wien
Year: 2020
Subjects: Pharmaceutical HME
Product Quality
scale-up
SPH
Mechanistic Modeling

description: During the pharmaceutical product development it is important, especially in the early phases, on get a good idea on the processability of the candidate formulations. Especially for hot melt extrusion (HME) based formulations choosing the appropriate equipment and process setup that will result in the desired product quality is not trivial. Especially significant in the early phases of the product development cycle, where typically only small amounts of active pharmaceutical ingredients (API) are available (often in the rage of couple of grams only), it is crucial to still be able to give educated guesses on the processability of the formulation, the expected product quality and, ideally, being able to propose candidate process setups. In order to fulfil the goals mentioned above, development of formulation and process specific knowledge is required, as well as development of potent in silico methodologies capable of mirroring the actual process itself. This work focuses on the development of suitable in silico tools for the accurate HME process capturing, extended experimental investigations and product quality correlation and prediction.
S1_AcquisitionTBA Proforma
Creators: name: Sherring, Asti
name: Barnott-Clement, Rebecca
Publisher: name: figshare
Year: 2021
Subjects: subject: 210202 Heritage and Cultural Conservation
subject: FOS: Media and communications

description: The Art Gallery of New South Wales (AGNSW) has been engaged in a collaborative and interdepartmental approach to the development and implementation of time-based art (TBA) collection management over the last six years. During this time the TBA conservation department has overseen, contributed to and composed documentation formats, such as questionnaires, artwork Pro Forma, iteration and iteration history reports, touring and artwork loan guides and analogue/digital media condition reports to support the conservation of non-traditional and changeable artworks from the Gallery’s collection. This paper provides practical TBA resources developed by the Art Gallery of New South Wales with the goal to support staff at other institutions and organisations working with TBA collections. The purpose, formation, practical application and value of the resources are discussed in the paper, along with sample templates provided as supplemental materials, for further use by museum professionals who manage and care for TBA works.
Non-destructive characterization of thermally sprayed cylinder coatings using laser-excited lock-in thermography
Creators: name: Arbogast, Jannik Marcel
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021

description: Zur Effizienzsteigerung von Verbrennungsmotoren und der daraus resultierenden Reduktion des CO$_2$-Ausstoßes moderner Antriebsstränge ersetzten thermisch gespritzte Zylinderlaufflächen gegossene Zylinderbuchsen in den vergangenen Jahrzehnten. Um eine langlebige Funktionalität und Haltbarkeit moderner Verbrennungsmotoren zu gewährleisten, wird die Haftung solcher thermisch gespritzter Zylinderlaufflächen an das Kurbelgehäuse laufend innerhalb der Großserienproduktion überwacht. Da die Haftung zwischen der Lauffläche und dem Kurbelgehäuse gegenwärtig nur mittels zerstörendem "Pull-off adhesion testing" (PAT$^{\scriptscriptstyle \textrm{TM}}$) gemessen werden kann, wird eine schnelle und zuverlässige zerstörungsfreie Prüfmethode benötigt, die das Bindungsverhalten der Zylinderlaufflächen bestimmen kann. Das Auftreten von Bindungsfehlern innerhalb der Mikrostruktur verringert die Haftung der Zylinderlaufflächen. Deshalb zeigen zerstörungsfreie Temperaturleitfähigkeitsmessungen, die sensitive auf diese Defektmorphologie reagieren, vielversprechende Korrelationen zwischen den thermischen und mechanischen Eigenschaften der Laufflächen. Die Anwendung solcher Temperaturleitfähigkeitsmessungen als zerstörungsfreies Prüfverfahren zur Bewertung der Haftfestigkeit thermisch gespritzter Zylinderlaufflächen ist Gegenstand dieser Arbeit. Hierzu wird die laserangeregte Lock-In Thermographie verwendet, um Interferenzmessungen thermischer Wellen innerhalb lichtbogendrahtgespritzter Zylinderlaufflächen von PKW-Motoren zu untersuchen. Die daraus gemessenen Temperaturleitfähigkeitswerte der untersuchten Schichten zeigen signifikante Veränderungen innerhalb der Kurbelgehäuse, insbesondere entlang der Laufflächen. Darüber hinaus werden zerstörende Haftzugsmessungen und Mikrostrukturanalysen der untersuchten Zylinderlaufflächen durchgeführt, um die mechanischen und mikrostrukturellen Eigenschaften zu beurteilen. Zusätzliche Bruchstellenanalysen nach den PAT$^{\scriptscriptstyle \textrm{TM}}$-Messungen ermöglichen die quantitative Beurteilung des adhäsiven und kohäsiven Versagens der Schicht. Die Untersuchungen der Zusammenhänge zwischen der Temperaturleitfähigkeit, des Haftzuges und der Mikrostruktur ergeben bedeutende Korrelationen zwischen diesen beobachteten Größen.
title: Deep Neural Network-based View factor Modelling of Radiative Heat Transfer between Particles
Creators: name: Tausendschön, Josef
name: Radl, Stefan
Publisher: name: TU Wien
Year: 2020
Subjects: Radiative Heat Transfer
data-driven modelling
machine learning
deep neural networks

description: We present a Deep Neural Network (DNN)-based view factor model to calculate radiative heat transfer between particles. Different neural net model parameters like: the number of hidden layers, the number of nodes per layer, optimization algorithms and techniques to prevent overfitting of the DNN are investigated. Using a simple regressor showed that one input marker, namely the surface distance between the interacting particles, cannot accurately predict the widespread view factors for increasing surface distance. Therefore, the effect of additional input markers like the solid angle between particles or a derivate of a local particle volume fraction is examined. The outcome of the DNN-model is compared to literature models and a simple regression analysis. It is demonstrated that the pretrained DNN-model can model view factors at higher accuracy and with significantly less computational effort than other literature models.
An analysis of the changing function and contemporary impact of the Alaska-British Columbia boundary
Creators: name: Halsey-Brandt, Gregory Charles
Publisher: name: University of British Columbia
Year: 2011

description: This study was undertaken to establish the impact of the Alaska-British Columbia boundary on socio-economic development in the boundary region. The impact was studied in three stages: (1) an historical analysis to determine the raison d'etre of the boundary and the consequent adaptations which have been made to its resulting barrier functions, (2) a contemporary analysis of the boundary as a constraint on the transportation routeways which it divides and (3) an analysis of a future problem which the situation of the boundary is expected to create in the division of authority over the international rivers which traverse the boundary. It was found that historically the boundary was established as a result of the extention of the Russian and British fur trade economies and thus was created as a barrier to penetration by the opposing traders. As a result of its delimitation on this basis, it created considerable stress in the region as the need arose for greater economic and social penetration of the boundary. Several rail, highway, and water routes were utilized to exploit this region and it was found that the boundary impeded the efficient operation of these routeways, albeit to a lesser extent than the Canadian public have expressed in political concern. However, to overcome this problem, effort has been directed at altering the location of the boundary to facilitate Canadian transportation routeways. This solution was found to offer little possibility of success. It was therefore suggested that the functions of the boundary be reviewed and that this approach would lead to a reduction in the barrier effect of the boundary. The future possibility of efficient utilization of the hydro electric resources of the Yukon, Taku and Stikine Rivers was also found to be hampered by the division of political jurisdiction. It is suggested that the limited market base in the region and large capital costs required for hydro projects preclude separate American and Canadian development programmes. Precedent established along the southern boundary of Canada and the United States provides a sufficient political-geographic framework within which to exploit jointly the power available on the northern rivers.