Rajat ylittäviä drag kingejä ja kurittomia dildolesboja : katsaus aikamme ruotsalaiseen queer-elokuvaan

Artikkeli on ilmestynyt alunperin nimellä: Transgressive Drag Kings, Defying Dildoed Dykes: A Look at Contemporary Swedish Queer Film, teoksessa Robin Griffiths (ed.): Queer Cinema in Europe. Bristol: Intellect, 2008. Suomennos Tanja Sihvonen.

Analysis and validation of space averaged drag model for numerical simulations of gas-solid flows in fluidized beds

This thesis presents an approach for formulating and validating a space averaged drag model for coarse mesh simulations of gas-solid flows in fluidized beds using the two-fluid model. Proper modeling for fluid dynamics is central in understanding any industrial multiphase flow. The gas-solid flows in fluidized beds are heterogeneous and usually simulated with the Eulerian description of phases. Such a description requires the usage of fine meshes and small time steps for the proper prediction of its hydrodynamics. Such constraint on the mesh and time step size results in a large number of control volumes and long computational times which are unaffordable for simulations of large scale fluidized beds. If proper closure models are not included, coarse mesh simulations for fluidized beds do not give reasonable results. The coarse mesh simulation fails to resolve the mesoscale structures and results in uniform solids concentration profiles. For a circulating fluidized bed riser, such predicted profiles result in a higher drag force between the gas and solid phase and also overestimated solids mass flux at the outlet. Thus, there is a need to formulate the closure correlations which can accurately predict the hydrodynamics using coarse meshes. This thesis uses the space averaging modeling approach in the formulation of closure models for coarse mesh simulations of the gas-solid flow in fluidized beds using Geldart group B particles. In the analysis of formulating the closure correlation for space averaged drag model, the main parameters for the modeling were found to be the averaging size, solid volume fraction, and distance from the wall. The closure model for the gas-solid drag force was formulated and validated for coarse mesh simulations of the riser, which showed the verification of this modeling approach. Coarse mesh simulations using the corrected drag model resulted in lowered values of solids mass flux. Such an approach is a promising tool in the formulation of appropriate closure models which can be used in coarse mesh simulations of large scale fluidized beds.

Stabilitet säkerhet skönhet snabbhet äro utmärkande drag för den nya Stutz bilen

kuv., 15 x 23 cm

Drag reduction by polyethylene glycol in the tail arterial bed of normotensive and hypertensive rats

This study was designed to evaluate the effect of drag reducer polymers (DRP) on arteries from normotensive (Wistar) and spontaneously hypertensive rats (SHR). Polyethylene glycol (PEG 4000 at 5000 ppm) was perfused in the tail arterial bed with (E+) and without endothelium (E-) from male, adult Wistar (N = 14) and SHR (N = 13) animals under basal conditions (constant flow at 2.5 mL/min). In these preparations, flow-pressure curves (1.5 to 10 mL/min) were constructed before and 1 h after PEG 4000 perfusion. Afterwards, the tail arterial bed was fixed and the internal diameters of the arteries were then measured by microscopy and drag reduction was assessed based on the values of wall shear stress (WSS) by computational simulation. In Wistar and SHR groups, perfusion of PEG 4000 significantly reduced pulsatile pressure (Wistar/E+: 17.5 ± 2.8; SHR/E+: 16.3 ± 2.7%), WSS (Wistar/E+: 36; SHR/E+: 40%) and the flow-pressure response. The E- reduced the effects of PEG 4000 on arteries from both groups, suggesting that endothelial damage decreased the effect of PEG 4000 as a DRP. Moreover, the effects of PEG 4000 were more pronounced in the tail arterial bed from SHR compared to Wistar rats. In conclusion, these data demonstrated for the first time that PEG 4000 was more effective in reducing the pressure-flow response as well as WSS in the tail arterial bed of hypertensive than of normotensive rats and these effects were amplified by, but not dependent on, endothelial integrity. Thus, these results show an additional mechanism of action of this polymer besides its mechanical effect through the release and/or bioavailability of endothelial factors.

Nonlinearites specifiques dans le modele DRAG - le cas de l'alcool.

Rapport de recherche

From Smeed's Single-Damage Fixed-Form Three-Variable Model to Multinational and Multiprovincial Drag-Type Formulations: Does the Mystery of 1972-1973 Disapear ?

Rapport de recherche

Blackboard 9 Drag and Drop

The fourth 3-minute video in a series introducing the new featurs of Blackboard 9.

Análisis de la cadena cinemática del drag-flick.

Resumen tomado de la publicación

Performatividad y roles de género en lo Drag en el escenario quiteño: el teatro Dionisios

Puesto que la representación de la diferencia es el resultado de un proceso de clasificación social relacionada con los imaginarios sociales, una construcción arbitraria basada en la necesidad del hombre de clasificar el mundo para darle sentido, la práctica del teatro Drag y del performance Drag puede, en general, entenderse como una camino hacia la deconstrucción y resignificación de los márgenes de las convenciones sobre género y sexualidad. Sin embargo, es importante analizar la respuesta del público a este performance, así como qué códigos maneja y cómo estos son decodificados para entender hasta qué punto estas representaciones son elementos deconstructores de las políticas de género o si en realidad dan lugar a interpretaciones ambiguas que pueden reforzar estereotipos tanto masculinos como femeninos. Así, el presente trabajo presenta el resultado de la investigación sobre cómo se representan los roles de género en los perfomances Drag Queen y Drag King en el marco del Teatro Diniosios en Quito.