We consider shape optimization of Stokes flow in channels where the objective is to design the lateral walls of the channel in such a way that a desired velocity profile is achieved. This amounts to the solution of a PDE constrained optimization problem with the state equation given by the Stokes system and the design variables being the control points of a Bézier curve representation of the la...

The understanding of domain structures, specifically domain walls, currently attracts a significant attention in the field of (multi)-ferroic materials. In this article, we analyze contrast formation in full field electron microscopy applied to domains and domain walls in the uniaxial ferroelectric lithium niobate, which presents a large 3.8 eV band gap and for which conductive domain walls hav...

Lateral luxation of permanent teeth is a common injury, and the most frequent post-injury complications is Pulp Canal Obliteration (PCO) followed by pulp necrosis and root resorption. This report presents two different prognoses for symmetrical immature maxillary central incisors after lateral luxation in a 7-year-old boy. Both teeth were laterally luxated and the gingiva distal to the left inc...

MOTS CLÉS Cardiomyopathie induite par le stress ; A 73-year-old woman without previous medical history was admitted for suspected persistent thoracic anginal pain following a violent suffocating cough. On admission, results of physical examination and per-critical electrocardiogram were normal. Aortic dissection and pulmonary embolism were ruled out by computed tomography scan. The troponin pea...

Shear walls are used in most of the tall buildings for carrying the lateral load. When openings for doors or windows are necessary to be existed in the shear walls, a special type of the shear walls is used called "coupled shear walls" which in some cases is stiffened by specific beams and so, called "stiffened coupled shear walls". In this paper, a mathematical method for geometrically nonline...

In the present experiment we investigated the importance of velocity information during a lane-centering task between the walls of a simulated tunnel. We v aried both simulated velocity and the spatial frequency content of the walls' surfaces, in order to address the innuence of each parameter on steering performance. Further, this performance was compared to the eeectiveness of lateral control...

Visualization of the brain's midline structures or of an intracranial mass lesion and detection of ventricular landmarks are the main goals of the ultrasonic (US) techniques in clinical neurology. While investigating the structures in the mid-sagittal plane of the head responsible for the midline echo by A-mode or unidimensional techniques (see Fig. 1), Gordon (1959), and de Vlieger and Ridder ...