fairdataihub/poster-sentry-training-data huggingface dataset:
1 Investigating User Account Control Practices Abstract Non-administrator user accounts and the user account control (UAC) approach of Windows Vista are two practical solutions to limit the damage of malware infection. UAC in Windows Vista supports usage of lower privilege accounts; a UAC prompt allows users to raise their privileges when required. We conducted a user study and contextual interviews to understand the motives and challenges participants face when using different user accounts and the UAC approach. Most participants were not aware of or motivated to employ low-privileged accounts. Moreover, most did not understand or carefully consider the prompts. Keywords Usable security, Least privilege, User account control ACM Classification Keywords H.5.0 Information Interfaces and Presentation: General; D.4.6 Software: Access controls, Invasive Software General Terms Human Factors, Security Introduction In 2005, it was said that 85% of computer users log in as an administrator [2]. This is convenient for users in terms of performing their daily activities; however, it also means that malware can install and run with administrative privileges. The principle of least privilege Copyright is held by the author/owner(s). CHI 2010, April 10–15, 2010, Atlanta, Georgia, USA. ACM 978-1-60558-930-5/10/04. Sara Motiee Department of Electrical & Computer Engineering The University of British Columbia Vancouver, BC, Canada motiee@ece.ubc.ca Kirstie Hawkey Department of Electrical & Computer Engineering The University of British Columbia Vancouver, BC, Canada hawkey@ece.ubc.ca Konstantin Beznosov Department of Electrical & Computer Engineering The University of British Columbia Vancouver, BC, Canada beznosov@ece.ubc.ca
Avenida Circunvalación del Club El Golf Los Incas 202 - Surco Lima Perú Telefax 3587002 Celular 992793067 E-mail: dcordova@dcr.com.pe DCR Ingenieros S.R.Ltda. Geomecánica en Minería y Obras Civiles La Importancia de la Capacidad de Deformación del Shotcrete AGOSTO, 2020 Antecedentes Problemática El deterioro progresivo del shotcrete debido a las deformaciones de las excavaciones que exceden sus capacidades, incrementa el costo operativo por mantenimiento de labores. El incremento por mantenimiento del refuerzo puede llegar en algunos casos a ser el 50% del costo de sostenimiento. Además, de la sensación de inseguridad que el shotcrete agrietado provoca y los posibles problemas de seguridad y demoras operativas que esto significa. Deformación del túnel Simulación numérica de deformaciones en la intersección de labores: En minería subterránea es común lidiar con deformaciones de 1% hasta 5% en los casos más críticos. La simulación numérica presentada en la figura superior muestra desplazamientos de hasta 3 cm en la corona y piso, ó 1.2% de deformación para una excavación de 5 m altura, tanto en los hastiales como en la corona o techo de la excavación. Ruptura shotcrete Deformaciones en una excavación vs el esfuerzo aplicado: Hoek (2007), mediante múltiples simulaciones demuestra los límites de deformación que una excavación presenta, variando las propiedades mecánicas del macizo rocoso, el campo de esfuerzos y las secciones de los túneles evaluados. Este gráfico sirve como referencia de las deformaciones aproximadas que las excavaciones subterráneas sufren hasta mantener condiciones límites de estabilidad. El shotcrete ha proliferado en los últimos 30 años debido a los avances tecnológicos. Para el diseño y aplicación, los parámetros más usados son, la resistencia a la compresión simple y la absorción de energía del shotcrete, también es monitoreada la evolución de la resistencia con el tiempo (resistencia compresiva y de tracción). Sin embargo, el módulo de deformación rara vez es considerado en la operación. El módulo de deformación (módulo de Young en el pre pico), define la capacidad de deformación antes de perder capacidad de carga. Ruptura shotcrete Modelo numérico de intersección de excavaciones subterráneas DCR, 2019. Desplazamientos en el modelo de intersecciones de excavaciones subterráneas. DCR, 2019.
Preservation Planning at the German National Library of Science and Technology (TIB) Preferred, Obsolete or In-Between? Developing a Criteria Catalogue for AV-Material // ABSTRACT The born-digital audio-visual (AV) holdings of the German National Library of Science and Technology are analyzed regarding the present file formats. The most frequent AV file formats are examined in terms of suitability as preservation format based on a catalogue of criteria. Furthermore their risk of obsolescence is evaluated using view paths. The examined file formats are not preferred as preservation formats, but they are not obsolete either. // RESULTS // REFERENCES Merle Friedrich merle.friedrich@tib.eu Orcid: 0000-0001-7158-8583 Preservation Planning for Digital Audio-Visual Material at the (TIB): https://doi.org/10.5281/zenodo.3386323 [1] J. Houpert, P. Melas, W. Bailer, and P. Walland, “Recommendations and techniques for content in a 'born robust' form,” 2015. Accessed on: Jun. 25 2018. // INTRODUCTION // FUTURE WORK • evaluate if view paths add a crucial value in order to determine the right time for migration • get a deep insight of the equipment and requirements of the designated community • schedule a regular check if the view paths still apply to the designated community • establish automated evaluation of (digital to digital) migration of AV content • evaluate if tentatively migrating into a preferred file format can replace validation // CONCLUSION • files need to be valid • lack of (open source) AV validation software • testing render ability cannot replace validation [1]. Are the file formats preferred as preservation formats? Are the file formats obsolete? 57% 8% 8% 27% AV formats Container Video Codec Audio Codec MPEG-4 AVC AAC Vs 4 WebM VP8 Vorbis MPEG-PS MPEG Video Vs 2 MPEG Audio Vs 1 divers (42 formats) preferred accepted critical obsolete established MPEG-4, AVC, AAC Vs 4 WebM, VP8, Vorbis MPEG-PS, MPEG Video Vs 2, MPEG Audio Vs 1 MKV, ffv1 Vs 3, PCM
ALSB NEWSLETTER A Publication of the American Business Law Association, Inc. d/b/a Academy of Legal Studies in Business ___________________________________________ Winter 2021 Office of the ALSB Executive Secretary Western Carolina University 434 Flat Gap Trail, Cullowhee NC 28723 www.alsb.org herron3652@gmail.com 2021 CONFERENCE DETAILS IN FLUX DUE TO COVID ONLINE OR HYBRID SEEMS TO BE THE ONLY OPTIONS Membership Being Asked to Weigh in Via Online Survey Dear Colleagues, We know we don’t need to tell you all the ways that the COVID-19 global pandemic continues to take its toll. Yet, we are reflecting on it anew as 2021 begins. We are daunted by the dreadful loss of life, long-term health consequences, and economic devastation the pandemic has wrought all over the world—and, sadly, with particularity for many among us. We have all also felt the impacts in less dramatic, but no less real, ways both personally and professionally during the past ten months, which have intertwined those two realms like few of us have experienced before. For many of us, home has become simultaneously office, classroom (ours and our children’s), refuge, and (to hyperbolize a bit) prison. Activities that were thoughtlessly routine a year ago—air travel, going to the movie theater and eating in a restaurant, or even having a few friends over for cocktails and a drink—are now either off the table or fraught with new risk. Indeed, the last time either of us set foot on an airplane was last March as we returned from the ALSB Executive Committee’s mid-year meeting at the SALSB conference in San Antonio. That same weekend also marked the last time one of us sat down in a restaurant to eat. Nearly a year later, we are still in uncharted territory. That brings us to the 2021 ALSB annual conference. Given the ongoing uncertainty, but mindful of the hope that the vaccine rollout brings, the Executive Committee has the daunting task of weighing the variables and making a decision on the format of the conference. Even the most optimistic predictions do not seem to suggest that society will be “back to normal” by August. And many of our institutions will still be reeling from the pandemic’s budgetary impacts. Thus, a return to our typical 100% in-person conference is very likely out of the question, even as we hold out hope that some in- person programming is possible. In order to plan the conference, we need data; namely, we need input from you, our members, on your thoughts, plans, and predictions regarding your likelihood of attendance, either in person or online. Beyond that, we need to know the factors that impact those continued on next page
, Potencial y campo eléctrico generados por una Carga Puntual entre dos planos conductores aterrizados F. E. Bueno-Pascual1, M. A. López-Mariño1, N. Aquino-Aquino2 1Tecnológico de Monterrey, Campus Central de Veracruz División de Profesional, Depto. de Ciencias Básicas Av. E. Garza Sada #1, Córdoba, Veracruz, México, 94500 2Universidad Autónoma Metropolitana, Iztapalapa División de Ciencias Básicas, Depto. de Física. Av. Michoacán y Purísima S/N, Apartado Postal 55-536 México, D.F., 09340, México RESUMEN En este trabajo ilustramos la utilización del método de las imágenes solución de tres problemas sencillos de electrostática, obtenemos las expresiones analíticas para los potenciales y campos eléctricos y los representamos gráficamente mediante el paquete Maple 1. INTRODUCCIÓN En los cursos de Teoría Electromagnética, desde los elementales hasta avanzados, se analizan problemas de electrostática donde es necesario encontrar las funciones que describen el potencial y el campo eléctrico en la región cercana a distribuciones de carga, sujetas a algunas condiciones de frontera impuestas por la geometría del problema. Este tipo de problemas suelen modelarse con las ecuaciones de Poisson  = V 2 y de Laplace 0 2 = V . En la mayoría de de estos problemas que involucran aplicaciones practicas, es necesario que los alumnos posean conocimientos de cómo resolver ecuaciones diferenciales en derivadas parciales. Sin embargo, en los cursos elementales de electricidad y magnetismo, los estudiantes no cuentan con este conocimiento, ni alguno otro alternativo como podría ser el análisis numérico. Un procedimiento sencillo, que ayuda a superar este obstáculo lo constituye el llamado método de las imágenes. Este método se emplea comúnmente en problemas que poseen cierta simetría espacial, pero en los casos más difíciles puede ser tan complicado que pierde su sencillez y resulta poco práctico. En este método se determina primero el potencial eléctrico, a partir del cual se obtiene el campo eléctrico en la forma usual V − = E . Este método resulta ser una ayuda muy valiosa, pues no requiere conocimientos avanzados de matemáticas ni de algoritmos complejos, solo se necesita conocer la expresión para algunos potenciales eléctricos elementales, así como del principio de superposición. (1) (2)
PoS(10th EVN Symposium)092 VLBI2010 - The TWIN radio telescope project at Wettzell, Germany G. Kronschnabl, T. Klügel, H. Hase Bundesamt für Kartographie und Geodäsie, Geodätisches Observatorium Wettzell Sackenrieder Str. 25, D-93444 Bad Kötzting, Germany A. Neidhardt∗ Forschungseinrichtung Satellitengeodäsie, Technische Universität München, Geodätisches Observatorium Wettzell Sackenrieder Str. 25, D-93444 Bad Kötzting, Germany K. Pausch Vertex Antennentechnik GmbH Baumstr. 46-50, D-47198 Duisburg, Germany W. Göldi Mirad Microwave AG Hofstetstr. 6, CH-9300 Wittenbach, Switzerland The Twin Telescope Wettzell (TTW) Project is funded to be executed during the period of 2008- 2011. The design of the TTW was based on the VLBI2010 vision of the corresponding IVS Working Group. In the ﬁrst two project years the design passed the simulations with respect to its speciﬁcations and was approved for production. At the Geodetic Observatory Wettzell a thorough soil analysis was made in order to deﬁne the sites for the towers of the new radio telescopes. Meanwhile the construction work has begun and acceptance tests of several telescope parts, e.g. azimuth bearings, took place. The full assembly of the radio telescopes is scheduled for the next two years. In parallel to the construction work at the Wettzell site, the design work for the different feed options progressed. The 10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays September 20th - 24th, 2010 Manchester, UK ∗Speaker. c ⃝Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. http://pos.sissa.it/
Commissioning of the 30-50 GHz Receiver at Nobeyama 45-m Radio Telescope- 2 years after installation Chau-Ching Chiong, Fumitaka Nakamura and the eQ Team Institute of Astronomy and Astrophysics, Academia Sinica, Taiwan National Astronomical Observatory of Japan The Atacama Large Aperture Submillimeter Telescope (AtLAST) design study: Results, science, and next steps 21-24. May 2024, Mainz, Germany
Vehicular Visible Light Communications with A Solar Panel Receiver Daniel K. Tettey Research and Development, Ford Otosan Istanbul, Turkey dtettey@ford.com.tr Roozbeh Bonakdar Electrical and Electronics Engineering, Özyegˇin University Istanbul, Turkey roozbeh.bonakdar@ozu.edu.tr ABSTRACT The wide availability of light-emitting diode (LED)-based light sources makes possible the use of visible light commu- nication (VLC) for both indoor and vehicular wireless con- nectivity. Earlier works on VLC have predominantly used photodetectors as receivers. It is also possible to utilize solar panels as receivers. In this paper, we present an experimental performance evaluation of a vehicular VLC system with a truck headlight as the transmitter and a solar panel as the receiver. First, we characterize the frequency response of two different solar panels and measure their bandwidth. Then, we present the performance of the vehicular VLC system in terms of data rate, signal-to-noise ratio (SNR), and eye diagrams. KEYWORDS Vehicular visible light communications, Solar panel, LED headlight. ACKNOWLEDGMENT This work was funded by the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska Curie grant agreement ENLIGHTEM No. 814215. Khadijeh Ali Mahmoodi Electrical and Electronics Engineering, Özyegˇin University Istanbul, Turkey khadijeh.ali@ozu.edu.tr Murat Uysal Engineering Division, New York University Abu Dhabi (NYUAD) Abu Dhabi, UAE murat.uysal@nyu.edu 1 INTRODUCTION Visible Light Communication (VLC) utilizes visible optical bands for high-speed data transmission and provides an al- ternative solution to radio frequency counterparts [1]. The wide availability of light emitting diode (LED)-based light sources makes possible the use of VLC for both indoor and vehicular connectivity. Earlier works on VLC have predomi- nantly used photodetectors as receivers. It is also possible to utilize solar panels as receivers, which brings the advan- tage of combining communication and energy harvesting functionalities [2]. For indoor applications, the use of solar panels as VLC receivers is well-investigated in the literature. For instance, in [3], and [4] the authors experimentally investigated the performance of indoor VLC systems with multi-crystalline silicon solar panels used as receivers. They implemented the dual functionality of data transmission and energy harvest- ing and reported data rates up to 17.5 Mbps. In [5], the authors conducted outdoor experiments with silicon solar panels and reported transmission distances up to 6.75 m while achieving a data rate of 50 kbps. The work in [6] reported a system performance enhancement mechanism using a pair of focusing lenses positioned after the LED and before the silicon solar panel receiver and reported a data rate of 15 Mbps. The current literature reveals a research gap regarding the utilization of solar panels as receivers in vehicular VLC systems. Particularly, there is a lack of studies exploring the use of vehicular headlights as transmitters in such systems. In our setup, we utilize an LED-based truck headlight as the
3D Object Rotation Using Virtual Trackball with Fixed Reference Axis Daniel González-Toledo María Cuevas-Rodríguez Luis Molina-Tanco Arcadio Reyes-Lecuona Universidad de Málaga, Spain Universidad de Málaga, Spain Universidad de Málaga, Spain Universidad de Málaga, Spain dgonzalezt@uma.es mariacuevas@uma.es lmtanco@uma.es areyes@uma.es Keywords: Virtual Trackball, Two Axis Valuator, 3D rotation, 3D interaction. 1. Introduction Among the 3D interaction techniques designed in the last decades to examine virtual objects using the mouse, virtual trackballs are especially suitable for overall examination of 3D objects. This experimental study focuses on a specific type among the various virtual trackball techniques: Two-Axis Valuator (TAV) with fixed axis. The classical TAV considers rotations around global X- and Y-axis, but for many applications, like 3D modelling, and many web-based 3D viewers, a special variation of the TAV is implemented, where horizontal displacements of the mouse are mapped to rotation around the fixed vertical axis. This technique is known as TAV with fixed up-vector (Bade, 2005) or just fixed trackball (Rybicki, 2016), and achieves transitive rotations. However, for some objects, there can be another intrinsic axis. For instance, objects like the rotor of a turbine have an intrinsic rotation axis, often horizontal (González-Toledo, 2017). In order to work with these objects, we propose to use a TAV with a generic fixed axis, which is not necessarily vertical. The hypothesis of this study is that the consistency between the object's intrinsic axis and the fixed axis in a TAV interaction will make interaction more natural, as the user's mental model will be a better fit to the interaction technique or, in other words, the level of stimulus-response compatibility will be higher. 2. Method 16 people, 12 male and 4 female, participated in the experiment. A TAV technique with fixed axis was im- plemented, being the fixed axis configurable as vertical or horizontal. The rotation controller is operated by holding down the right mouse button and tracking mouse movement. The left mouse button is reserved for selection. The 3D object used for the experiment is a sphere with twenty small protrusions distributed over its surface, referred to as targets. This sphere is covered by a texture indicating meridians and parallels. In this way we are suggesting an intrinsic axis by texture, on a geometry (a sphere) without any intrinsic axis. Each participant had to perform an inspection tasks in four conditions (four trials), presented in a random order, counterbalanced using Latin squares: (1) consistent-vertical, defined as vertical fixed axis in TAV and vertical intrinsic axis in the object; (2) inconsistent-vertical, defined as vertical fixed axis in TAV and horizontal intrinsic axis in the object; (3) consistent-horizontal, defined as horizontal fixed axis in TAV and horizontal intrinsic axis in the object; (4) inconsistent-horizontal, defined as horizontal fixed axis in TAV and vertical intrinsic axis in the object.
Hyperspectral imaging for high-resolution mapping of soil profile organic carbon distribution in an Austrian Alpine landscape Yaser Ostovari1, Baptist Köppendörfer1, Julien Guigue1, Jan Willem Van Groenigen2, Rachel Creamer2, Thomas Guggenberger3, Florian Grassauer4, Eleanor Hobley1, Laura Ferron2, Henk Martens2, Ingrid Kögel-Knabner1, Alix Vidal1 1Lehrstuhl für Bodenkunde, TU München, Freising, Germany, 2Soil Biology Group, Wageningen University, Netherlands, 3Höhere Bundeslehr- und Forschungsanstalt für Landwirtschaft Raumberg-Gumpenstein, Irdning, Austria, 4HBLFA Raumberg-Gumpenstein, Institut für Pflanzenbau und Kulturlandschaft Abteilung Umweltökologie, Austria Introduction  Alpine mountainous regions are characterized by high soil organic carbon (SOC) content (Prietzel et al., 2016).  Subsoils store 30 to 63% of the SOC stocks (Rumpel and Kögel-Knabner, 2011).  Topography affects spatial variability of SOC content, not only in topsoils but also in subsoils (Chen et al., 2016 ; Zhu et al., 2019).  Hyperspectral imaging (Vis-NIR spectroscopy) can reveal the SOC hotspots at micro-scale (Hobley at l., 2018; Nawar and Mouazen, 2019).  Random forests (RF) as a combination of tree predictors have been successfully used for modelling soil profile OC from spectral information of intact soil cores (Jia et al., 2017; Hobley at l., 2018; Sorenson et al., 2020). Objectives  Test the use of hyperspectral imaging coupled with the RF machine learning for mapping of the soil profile OC distribution in an alpine mountainous landscape.  Investigate the effects of topographical factors on SOC distribution in soil profiles. Circular Agronomics receives funding from the European Union’s Horizon 2020 Grant Agreement no. 773649 1 (C) Ostovari et al. all right reserved
1 Tunnelling the Internet Habiba Akter School of Electronic Engineering and Computer Science Queen Mary, University of London, London, United Kingdom h.akter@qmul.ac.uk Chris Phillips School of Electronic Engineering and Computer Science Queen Mary, University of London, London, United Kingdom chris.i.phillips@qmul.ac.uk Abstract: Despite a considerable increase in the capacity of the Internet, regional congestion is still an issue at certain times of day. Dimensioning the system to provide minimal delay under these transient conditions would be uneconomical, particularly as various forms of application data are more or less sensitive to these delays, as are different end-users. We therefore investigate a scheme that allows end-users to selectively exploit a sequence of mini tunnels along a path from their origin to a chosen destination. We assume the availability of such tunnels is advertised centrally through a broker, with the cooperation of the Autonomous System (AS) domain operators, allowing end-users to use them if so desired. The closest analogy this scheme is that of a driver choosing to use one or more toll roads along a route to avoid potential congestion or less desirable geographic locations. It thus takes the form of a type of loose source routing. Furthermore, the approach avoids the need for inter-operator cooperation, although such cooperation would provide a means of extending tunnels across AS peers. In this paper we explore the benefit in terms of delay reduction for a given concentration of tunnel presence within a portion of the Internet. We show that a relatively small number of tunnels may be sufficient to provide worthwhile improvements in performance for some users at least. We consider both the case when tunnels are randomly distributed, and when they are provided close to an AS domain of interest, where traffic congestion is more likely. In this latter case, even a relatively small number of tunnels can provide a notable benefit to a reasonable number of users spread across a large region. Keywords: Internet, Autonomous System, loose source routing, tunnelling, broker, traffic congestion. Introduction Although the Internet has proved to be robust and flexible, the delivery of time critical data traversing multiple Autonomous System (AS) domains remains sub-optimal due to the
Book of Abstracts Edited by: Baca A., Wessner B., Diketmüller R., Tschan H., Hofmann M., Kornfeind P., Tsolakidis E. EUROPEAN COLLEGE OF SPORT SCIENCE CROSSING BORDERS THROUGH SPORT SCIENCE 21 st Αnnual Congress of the 6th - 9th July 2016, Vienna - Austria Hosted by the Centre for Sport Science and University Sports, University of Vienna