1,901 research outputs found
La poesía de José Miguel Ibáñez Langlois: un ejercicio de interpretación poética en ‘El Rey David’
No full textThis article examines certain aspects of the poetry of José Miguel Ibáñez Langlois, especially his collection of poems about the biblical King David, detecting certain aspects characteristic of a discource dialoguing whit religious/biblical writing throughan exercise in poetical interpretation.El artículo aborda algunos aspectos de la poesía de José Miguel Ibáñez Langlois, especialmente su poemario acerca del Rey David bíblico, detectando algunos rasgos propios de una discursividaddialogante con la escritura religioso/bíblica a través de un ejercicio de interpretación poética
A Novel Physical Human–Robot Interface With Pressure Distribution Measurement Based on Electrical Impedance Tomography
No full textThis work was supported in part by Fonds Wetenschappelijk Onderzoek (FWO) Strategisch Basis Onderzoek (SBO) Sublime under Grant S007423N and in part by the Flemish Government through the Program Onderzoeksprogramma Artificiele Intelligentie (AI) Vlaanderen. The work of Huaijin Chen was supported by the China Scholarship Council (CSC) under Grant 202106830032. The work of Kevin Langlois, Joost Brancart, and Ellen Roels was supported by FWO under Grant 1258523N, Grant 12E1123N, and Grant 1S84120N. The associate editor coordinating the review of this article and approving it for publication was Prof. Chao Tan. (Corresponding author: Huaijin Chen.
An analytical model for predicting rotor broadband noise due to turbulent boundary layer ingestion
No full textA semi-empirical analytical model is developed that predicts the noise produced by a rotor ingesting a boundary layer in proximity to a hard-wall. The rotor boundary layer ingestion noise source is an important source to include when a rotor is installed close to an aircraft fuselage. This is the case for a tail mounted counter rotating open rotor for example. This paper presents three extensions to Amiet's simplified rotor noise model to predict this noise source. The first extension is the method of images, which is used to model the acoustic reflections of the hard-wall. The second extension is an anisotropic velocity spectrum, which is used to model the boundary layer turbulence. The third extension is a numerical switch to account for the partial loading of the rotor as only a part of it is immersed in the boundary layer. The homogeneous anisotropic turbulence model used is a simplification of the actual turbulence the rotor encounters in the boundary layer. In reality, the turbulence in the boundary layer is not homogeneous in the wall-normal direction. Therefore, while the integral length scale in the streamwise direction can be determined from experimental or numerical data, the integral length scale in the wall-normal direction must be chosen empirically. The rotor noise model is validated by comparing its predictions to experimental data at three different advance ratios. The proposed rotor noise model is then used to investigate the effect of the hard-wall on the noise spectrum. The hard-wall affects the downstream directivity more significantly than the upstream directivity for all the rotor operating conditions. Changing the advance ratio of the rotor does not significantly alter the effect that the hard-wall has on the noise spectrum
Investigating the effect of anisotropy in Amiet’s analytical leading-edge noise model
No full textThe leading-edge noise generated by turbofan and open rotor engines due to interaction with turbulence can be a significant contributor to the total noise radiated by an aircraft. This noise source is very sensitive to the nature of the turbulence that impinges on the leading edge. Most analytical and numerical models assume that the turbulence is isotropic. This assumption produces satisfactory results for the majority of cases considered. However, there are numerous noise sources in which the anisotropy of the turbulence is significant and the resultant noise is poorly predicted with the use of an isotropic velocity spectrum. One such noise source is the ingestion of a turbulent boundary layer by an open rotor. This paper includes the anisotropic velocity spectrum of Kerschen and Gliebe in Amiet's analytical model for a translating aerofoil. Using the translating model it is shown that the axial length scale shifts the frequency at which the maximum energy in the spectra occurs and moderately alters the resulting sound PoWer Level (PWL) spectra. Conversely, altering the transverse length scale does not change the frequency at which the maximum energy occurs in the spectra but does alter the maximum PWL significantly. The analytical analysis of an aerofoil ingesting anisotropic turbulence provides an insight into how redistributing the energy in the axial and transverse energy spectra, by changing the axial and transverse length scales, can reduce leading-edge noise. The anisotropic turbulence model is compared to two real world anisotropic turbulence datasets available in the literature. These are datasets for boundary-layer turbulence obtained from experiments and direct numerical simulations of a channel flow. When the model spectra is compared to statistics obtained from these datasets, several discrepancies are observed. It is observed that the model spectrum significantly over-predicts the transverse integral length scales and energy spectra.</p
Float School: Pedagogical Experiments and Social Actions
No full textFloat 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
Une lecture de Langlois et Seignobos
No full textThis article puts fonvard arguments for the necessity of a historicist's view of Langlois and Seignobos 'book, which, in order to be understood, must be situated in the context of Social Sciences in full expansion at the close of the XIXth Century. The author discovers that this book, far from being a joyful manifesto of the historical method, is already in reality a reaction to the sociologists, a defence of and a state of tension over History's menaced identity. Besides the methodological principles classicly taught at the Ecole des Chartes and elsewhere, Seignobos has thus set out a system of attack (or rather defence) which must be given prominence amidst apparently academic discourse.Cet article argumente la nécessité d'une lecture historiciste du livre de Langlois et Seignobos qui, pour être compris, doit être situé dans le champ des sciences sociales en plein essor à la fin du XIXe siècle. On découvre alors que, loin d'être un manifeste joyeux de la méthode historique, ce livre est en réalité déjà une réaction face aux sociologues, une défense et une crispation sur l'identité menacée de la discipline historique. À côté des principes méthodologiques classiquement enseignés à l'École des Chartes et ailleurs, Seignobos a ainsi placé tout un système d'attaque (ou plutôt de défense) qu'il faut mettre en évidence au milieu du discours apparemment académique.Mucchielli Laurent. Une lecture de Langlois et Seignobos. In: Espaces Temps, 59-61, 1995. Le temps réfléchi. L'histoire au risque des historiens, sous la direction de François Dosse. pp. 130-136
Malak Kanso David Danovitch Elodie Nguena Richard Langlois Christian Bergeron
No full textInternational audienc
Malak Kanso David Danovitch Elodie Nguena Richard Langlois Christian Bergeron
No full textInternational audienc
Malak Kanso David Danovitch Elodie Nguena Richard Langlois Christian Bergeron
No full textInternational audienc
Le Fonds d’assurance responsabilité professionnelle du Barreau du Québec
No full textFor the past two years, the primary professional liability
insurance has been replaced, for Quebec lawyers, by a fund
administered by the Quebec Bar. We thank the author, Me René
Langlois, who is General Manager of the Fund, to summarize the
new self-insurance regime covering any claim up to $500,000 made
against lawyers. Comments are offered on the implementation, the
rules concerning premiums, the coverages, and the claims'
administration
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