29,779 research outputs found
Float School: Pedagogical Experiments and Social Actions
Full text linkFloat School is the catalyst and culmination of many embodied, affective, and improvisational experiences that create the opportunity to ask, “what can school be?” We find ourselves asking this question, as artists and educators, because we are often drawn to imagining how else we could learn together, and under what other terms, feelings and environments learning could occur. Float School is at once a site, a time, a collective endeavour, and a school. (Justin Langlois and Holly Schmidt)Part 1: Duration/Reflection — When Did You Eat? / Annie Canto — Forests, Fantasy and the Knowledge Industry / Caitlin Chaisson and Liljana Mead Martin — Pulp, Synthesis / Caitlin Chaisson and Liljana Mead Martin — Gratitude Exercise / Rebecca Bair — bargain bin / Rob Budde — Part 2: Immersion/Precipitation — Walking on Snow / Holly Schmidt — Sinking/Floating / Caitlin Chaisson and Holly Schmidt / Float Adrift on Memory Bliss of Dew / Ben Lee — Scent Walk / Holly Schmidt — Empathy Walk / Rebecca Bair — Part 3: Uncertainty/Discomfort — Under Her Eyelids / Romane Bladou — Canoeing Negotiation / Justin Langlois — Line of Site Walk / Justin Langlois — Bone Tapping / Annie Canto — Healing with Water / Reyhan Yazdani — Part 4: Space/Environment — Sound Score Choreography / Annie Canto — Quiet Spaces Erupted in Sound / Justin Langlois — Making Connections with Moss / Twyla Exner —Site Drawings with Metal and Sunscreen / Caitlin Chaisson and Liljana Mead Martin — Portrait of Prince George/Lheidli / Rob Budde — Part 5: Orientation/Coordination — Unexpected Electric Boogie / Annie Canto — Story Ropes / Laura Kozak, Charlotte Falk and Jean Chisholm — Sites of Care and Concern / Laura Kozak, Charlotte Falk and Jean Chisholm — Collaboration in Orientation / A conversation with Holly Schmidt, Justin Langlois, Annie Canto, Laura Kozak, Charlotte Falk and Jean Chisholm — Compass for Uncoordinates / Annie Canto — Technicity / Rob Budde — Closing/Opening — Learning with Float School / Justin Langlois — Float School Timeline — Contributor
Supplement_material - Size facilitates profitable ski lift operations
No full textSupplement_material for Size facilitates profitable ski lift operations by Martin Falk and Robert Steiger in Tourism Economics</p
Supplemental Material, Table_5 - Hotels benefit from stricter regulations on short-term rentals in European cities
No full textSupplemental Material, Table_5 for Hotels benefit from stricter regulations on short-term rentals in European cities by Martin Thomas Falk and Yang Yang in Tourism Economics</p
Supplemental Material, Appendix - Income elasticity of overnight stays over seven decades
No full textSupplemental Material, Appendix for Income elasticity of overnight stays over seven decades by Martin Falk, and Xiang Lin in Tourism Economics</p
Supplemental Material - Commitment of travel and leisure firms to sustainable development goals
No full textSupplemental Material for Commitment of travel and leisure firms to sustainable development goals by Martin Thomas Falk and Eva Hagsten in Tourism Economics.</p
Supplemental Material, Supplemental_material - The declining dependence of ski lift operators on natural snow conditions
No full text
Supplemental Material, Supplemental_material for The declining dependence of ski lift operators on natural snow conditions by Martin Falk, and Xiang Lin in Tourism Economics
</p
supplement_material - Short-term hotel room price effects of sporting events
No full textsupplement_material for Short-term hotel room price effects of sporting events by Martin Thomas Falk and Markku Vieru in Tourism Economics</p
Supplemental Material, Appendix - The art of attracting international conferences to European cities
No full textSupplemental Material, Appendix for The art of attracting international conferences to European cities by Martin Falk, Eva Hagsten in Tourism Economics</p
Loop Nest Splitting for WCET-Optimization and Predictability Improvement
Full text linkThis paper presents the influence of the loop nest splitting source code optimization on the worst-case execution time (WCET). Loop nest splitting minimizes the number of executed if-statements in loop nests of embedded multimedia applications. Especially loops and if-statements of high-level languages are an inherent source of unpredictability and loss of precision for WCET analysis. This is caused by the fact that it is difficult to obtain safe and tight worst-case estimates of an application's flow of control through these high-level constructs. In addition, the corresponding control flow redirections expressed at the assembly level reduce predictability even more due to the complex pipeline and branch prediction behavior of modern embedded processors.
The analysis techniques for loop nest splitting are based on precise mathematical models combined with genetic algorithms. On the one hand, these techniques achieve a significantly more homogeneous structure of the control flow. On the other hand, the precision of our analyses leads to the generation of very accurate high-level flow facts for loops and if-statements. The application of our implemented algorithms to three real-life multimedia benchmarks leads to average speed-ups by 25.0% - 30.1%, while WCET is reduced between 34.0% and 36.3%
Advances in sound field analysis and control based on cylindrical coordinates
No full textThis Ph.D. thesis concerns advances in acoustic transducer array technology for improved sound field analysis and control performance. Four principal investigations are presented, which address specific performance limitations of microphone arrays and loudspeaker arrays. The basic model, on which these investigations are founded, is the general solution of the Helmholtz equation in cylindrical coordinates. The individual acoustical investigations draw on the analysis of the eigenvalues and eigenfunctions of the forward operator, providing information on the robustness of the inverse solutions against non-uniqueness, ill-conditioning and spatial aliasing. A circular microphone array design based on tangentially aligned pressure gradient sensors is studied. The theoretical analysis is complemented by a simulation study, comparing the new design to conventional arrays built from pressure sensors. It is shown that the proposed design can provide an improved performance at low frequencies, while performing worse at high frequencies due to spatial aliasing. The effects of the latter can be compensated if the Direction-of-Arrival (DOA) of the incoming waves is known. A novel DOA estimation method for sound fields measured with circular microphone arrays is proposed to address this. Using analytical expressions to model the sound fields of point sources and plane waves, it is studied for which sound fields the method is applicable and how robust it is against model imperfections. The estimation accuracy for different numbers of sources and different levels of background noise is investigated in a simulation study and the method is tested against real data, obtained through acoustic measurements. The estimation results achieved in simulations and with experimental data compare well. The general solution to the Helmholtz equation is then applied as a model for acoustic radiation in wedge-shaped spaces. This investigation aims to improve the performance of loudspeaker arrays in restricted propagation spaces, e.g. rooms. By introducing boundary conditions to the general model, different sets of basis functions are implemented in the solution and it is shown that the model enables Nearfield Acoustical Holography (NAH). Using the same propagation model, a technique for sound field control with arrays in wedge spaces is developed. The inverse problem is solved by means of a mode-matching approach, leading to an expression for the driving signals ased on a target beam pattern. Both simulations and experiments with a hemi-cylindrical loudspeaker array prototype confirm the applicability of the model for both NAH and beamforming with loudspeaker arrays in wedge spaces. Different beam patterns are considered and the model is tested through simulations and experiments. The implications of the findings, how they are linked and what future developments they may lead to is discussed
- …
