Determining the Spectral Signature of Spatial Coherent Structures

We applied to an open flow a proper orthogonal decomposition (pod) technique, on 2D snapshots of the instantaneous velocity field, to reveal the spatial coherent structures responsible of the self-sustained oscillations observed in the spectral distribution of time series. We applied the technique to 2D planes out of 3D direct numerical simulations on an open cavity flow. The process can easily be implemented on usual personal computers, and might bring deep insights on the relation between spatial events and temporal signature in (both numerical or experimental) open flows.Comment: 4 page

Estudio de caso: aplicación de terapia humanista y danza primal en una paciente con trastorno de depresión mayor, duelo y cleptomanía

The present case study describes the therapeutic intervention applied to a 40 year old woman with major depressive disorder, kleptomania and complicated gief. The treatment consisted of 20 sessions of humanistic therapy (with special interest in Emotion-Focused Therapy) and Primal Dance, a branch of the Fundamental Interactions Model. The process was focused on the transformation of maladaptive emotions, the resolution of unfinished businesses, the discovery of internal strengths and the in-session bodily experience of positive behaviors. In order to value the effectiveness of the treatment, measures of the symptom´s test SCL-90 and the Beck Depression Inventory were taken before and after the process.El presente estudio de caso describe la intervención psicoterapéutica realizada en una mujer de 40 años de edad con trastorno depresivo mayor, cleptomanía y una experiencia de duelo complicado. El tratamiento consistió en 20 sesiones de terapia humanista (con especial énfasis en la Terapia Centrada en las Emociones) y la práctica de Danza Primal proveniente del Modelo de Interacciones Primordiales. El proceso se enfocó en la transformación de las emociones mal-adaptativas, la resolución de asuntos inconclusos, el descubrimiento de las fortalezas internas y la práctica vivencial-corporal de comportamientos positivos

Jody May-Chang

Activist and Journalist Jody May-Chang grew up as a secular Jew in southern California. She was born in 1960 and personally experienced anti-Semitism as a child. In college, she had her own radio show called, “Gay and Lesbian Perspectives.” The murder of Harvey Milk became the impetus for becoming an activist for many issues. Her activism has led to a career of journalism and social justice. May-Chang worked on the Idaho Human Rights Act legislation. Outside of the LGBT community, May-Chang is a supporter of the Occupy movement, and the fight for a living wage.https://scholarworks.boisestate.edu/idlgbtq_oral_histories/1014/thumbnail.jp

Ability of the e-TellTale sensor to detect flow features over wind turbine blades: flow separation/reattachment dynamics

Monitoring the flow features over wind turbine blades is a challenging task that has become more and more crucial. This paper is devoted to demonstrate the ability of the e-TellTale sensor to detect the flow separation/reattachment dynamics over wind turbine blades. This sensor is made of a strip with a strain gauge sensor at its base. The velocity field was acquired using TR- PIV measurements over an oscillating thick blade section equipped with an e-TellTale sensor. PIV images were post-processed to detect movements of the strip, which was compared to movements of flow. Results show good agreement between the measured velocity field and movements of the strip regarding the separation/reattachment dynamics

Sur la présence d’Harpocrate à Pétra et en Jordanie

L’étude part d’une figurine en bronze d’Harpocrate inédite, conservée au Musée archéologique de Pétra. Elle recense les autres témoignages en faveur du petit dieu, à Pétra et en Jordanie, que ce soit sous la forme de statuettes (bronze, terre cuite) ou de plaquettes en terre cuite. Ils attestent un certain intérêt envers une divinité souvent oubliée, dans l’ombre de la forte personnalité d’Isis.The paper starts with the study of an unpublished bronze figurine of Harpocrates, kept in the Petra archaeological museum. It makes the inventory of the other testimonies concerning the god in Petra and in Jordan, as bronze as terracotta statuettes or plaques. They show a certain interest for this deity, who is often neglected in the shadow of the great goddess Isis.تنطلق المقالة من دراسة لتمثالٍ من البرونز لحربوقراط (Harpocrates) لم يسبق نشره، محفوظ في متحف آثار البتراء. تُحصي المكتشفات الأخرى المراعية للإله الصغير، في البتراء والأردن، التي تكون إمّا بشكل تماثيل) من البرونز، الطين المشوي (أو صفائح من الطين المشوي والتي تشهد على الاهتمام بإلهة منسية، في ظّل الشخصية القّوية للإلهة إيزيس (Isis

Louis Carton (1861-1924) et les religions d’Afrique

As a medical officer, Louis Carton discovered Tunisia in 1886 and devoted himself with passion to archaeology. He discovered numerous sites and became a reference in this field, even if he quickly encountered difficulties with the official archaeological authorities. Even though he was more specialized in Roman colonisation and irrigation works, he often touched on religious matters.Médecin militaire, Louis Carton découvre la Tunisie en 1886 et s’adonne avec passion à l’archéologie. Il y découvre de nombreux sites, et devient une référence dans ce domaine, même s’il entre rapidement en lutte avec les autorités archéologiques officielles. Plus spécialisé dans les domaines de la colonisation romaine et des travaux d’irrigation, il aborde cependant à de multiples reprises le champ religieux

Proper Orthogonal Decomposition Analysis and Modelling of the wake deviation behind a squareback Ahmed body

We investigate numerically the 3-D flow around a squareback Ahmed body at Reynolds number Re = 104. Proper Orthogonal Decomposition (POD) is applied to a symmetry-augmented database in order to describe and model the flow dynamics. Comparison with experiments at a higher Reynolds number in a plane section of the near-wake at mid-height shows that the simulation captures several features of the experimental flow, in particular the antisymmetric quasi-steady deviation mode. 3-D POD analysis allows us to classify the different physical processes in terms of mode contribution to the kinetic energy over the entire domain. It is found that the dominant fluctuating mode on the entire domain corresponds to the 3-D quasi-steady wake deviation, and that its amplitude is well estimated from 2-D near-wake data. The next most energetic flow fluctuations consist of vortex shedding and bubble pumping mechanisms. It is found that the amplitude of the deviation is negatively correlated with the intensity of the vortex shedding in the spanwise direction and the suction drag coefficient. Finally, we find that despite the slow convergence of the decomposition, a POD-based low-dimensional model reproduces the dynamics of the wake deviation observed experimentally, as well as the main characteristics of the global modes identified in the simulation