We show that a stochastic flow which is generated by a stochastic differential equation on R with bounded volatility has a random attractor provided that the drift component in the direction towards the origin is larger than a certain strictly positive constant β outside a large ball. Using a similar approach, we provide a lower bound for the linear growth rate of the inner radius of the image ...

Contrary to microbial taxis, where a tactic response to external stimuli is controlled by complex chemical pathways acting like sensor-actuator loops, taxis of artificial microswimmers is a purely stochastic effect associated with a non-uniform activation of the particles’ self-propulsion. We study the tactic response of such swimmers in a spatio-temporally modulated activating medium by means ...

The early time (t < 300 s) interaction of the Ba + cloud with the solar wind during the AMPTE comet release is examined, with an emphasis on the issue of the Ba + ion magnetization. It is shown that the observed magnetic field profile is consistent with the Ba + ions being magnetized, in the sense that the cloud radius L > Ra,•+, where RBa+ is the Ba + gyroradius. As a consequence, any momentum...

This study aims to compare structural modeling with the addition of wall elements and without walls help SAP2000 software. The method used in this is time history analysis using San Fernando groundmotion data. Based on that has been done, participation variance mass reached 90% for structures mode 278 while 243. resulted a decrease drift value. average percentage settlement each floor 40.12% X ...

One of the signs of the cerebellar ocular motor syndrome is the inability to maintain horizontal and vertical fixation. Typically, in the presence of cerebellar atrophy, the eyes show horizontal gaze-evoked and vertical downbeat nystagmus. We investigated whether or not the cerebellar ocular motor syndrome also includes a torsional drift and, specifically, if it is independent from the drift in...

INTRODUCTION External fixation is the primary choice of temporary fracture stabilisation for specific polytrauma patients. Adequate initial fracture healing requires sufficient stability at the fracture site. The purpose of this study was to compare the rigidity of the Dynafix DFS(®) Standard Fixator (4 joints) with the Orthofix ProCallus Fixator(®) (2 joints), which differ in possibilities for...

On a touchscreen keyboard, it can be difficult to continuously type without frequently looking at the keys. One factor contributing to this difficulty is called hand drift, where a user’s hands gradually misalign with the touchscreen keyboard due to limited tactile feedback. Although intuitive, there remains a lack of empirical data to describe the effect of hand drift. A formal understanding o...

in this paper, based on soil plasticity and pseudo-static methods, necessary equations have been derived for determination of total active thrusts due to layered backfill on rigid retaining walls using limit equilibrium approach. for this purpose, the reaction force applied on the failed wedge due to granular backfill has been determined using kotter’s equations. the total lateral thrust and th...

This report describes the principles of an algorithm developed within the WITAS project [3]. The goal of the WITAS project is to build an autonomous helicopter that can navigate autonomously, using differential GPS, GIS-data of the underlying terrain (elevation models and digital orthophotographs) and a video camera. Using differential GPS and other non-visual sensory equipment, the system is a...