The Experts below are selected from a list of 298008 Experts worldwide ranked by ideXlab platform
D Rosenbaum - One of the best experts on this subject based on the ideXlab platform.
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modified Pressure Distribution patterns in walking following reduction of plantar sensation
Journal of Biomechanics, 2002Co-Authors: Eric Eils, Stefan Nolte, Markus Tewes, L Thorwesten, Klaus Volker, D RosenbaumAbstract:The aim of the present study was to investigate the influence of reduced plantar sensation on Pressure Distribution patterns during gait of 40 healthy subjects (25.3+/-3.3 yr, 70.8+/-10.6 kg and 176.5+/-7.8 cm) with no history of sensory disorders. Plantar sensation in the subjects was reduced by using an ice immersion approach, and reduced sensitivity was tested with Semmes-Weinstein monofilaments. All subjects performed six trials of barefoot walking over a Pressure Distribution platform under normal as well as iced conditions. Plantar cutaneous sensation was significantly reduced after the cooling procedure (p<0.0001). Pressure Distribution analysis showed substantially modified plantar Pressure Distribution patterns during the roll-over process (ROP) under iced conditions. Analysis of peak Pressures revealed significant reductions under the toes and under the heel (p<0.001). The contact time and the relative impulse for the whole foot did not change significantly between the two conditions. For the different areas, a significant load shift from the heel and toes towards the central and lateral forefoot and the lateral midfoot was observed. The results indicate the strong influence of reduced afferent information of the sole of the foot on the ROP in walking.
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modified Pressure Distribution patterns in walking following reduction of plantar sensation
Journal of Biomechanics, 2002Co-Authors: Eric Eils, Stefan Nolte, Markus Tewes, L Thorwesten, Klaus Volker, D RosenbaumAbstract:Abstract The aim of the present study was to investigate the influence of reduced plantar sensation on Pressure Distribution patterns during gait of 40 healthy subjects (25.3±3.3 yr, 70.8±10.6 kg and 176.5±7.8 cm) with no history of sensory disorders. Plantar sensation in the subjects was reduced by using an ice immersion approach, and reduced sensitivity was tested with Semmes–Weinstein monofilaments. All subjects performed six trials of barefoot walking over a Pressure Distribution platform under normal as well as iced conditions. Plantar cutaneous sensation was significantly reduced after the cooling procedure ( p p
Konrad Vogeler - One of the best experts on this subject based on the ideXlab platform.
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aerodynamic blade row interactions in an axial compressor part ii unsteady profile Pressure Distribution and blade forces
Journal of Turbomachinery-transactions of The Asme, 2004Co-Authors: Ronald Mailach, Konrad VogelerAbstract:This two-part paper presents experimental investigations of unsteady aerodynamic blade row interactions in the first stage of the four-stage low-speed research compressor of Dresden. Both the unsteady boundary layer development and the unsteady Pressure Distribution of the stator blades are investigated for several operating points. The measurements were carried out on Pressure side and suction side at midspan. In Part II of the paper the investigations of the unsteady Pressure Distribution on the stator blades are presented. The experiments were carried out using piezoresistive miniature Pressure sensors, which are embedded into the Pressure and suction side surface of a single blade. The unsteady Pressure Distribution on the blade is analyzed for the design point and an operating point near the stability limit. The investigations show that it is strongly influenced by both the incoming wakes and the potential flow field of the downstream rotor blade row. If a disturbance arrives the leading edge or the trailing edge of the blade the Pressure changes nearly simultaneously along the blade chord. Thus the unsteady profile Pressure Distribution is independent of the wake propagation within the blade passage. A phase shift of the reaction on Pressure and suction side is observed. The unsteady response of the boundary layer and the profile Pressure Distribution is compared. Based on the unsteady Pressure Distribution the unsteady Pressure forces of the blades are calculated and discussed.
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aerodynamic blade row interactions in an axial compressor part ii unsteady profile Pressure Distribution and blade forces
ASME Turbo Expo 2003 collocated with the 2003 International Joint Power Generation Conference, 2003Co-Authors: Ronald Mailach, Konrad VogelerAbstract:This two-part paper presents experimental investigations of unsteady aerodynamic blade row interactions in the first stage of the four-stage Low-Speed Research Compressor of Dresden. Both the unsteady boundary layer development and the unsteady Pressure Distribution of the stator blades are investigated for several operating points. The measurements were carried out on Pressure side and suction side at midspan. In part II of the paper the investigations of the unsteady Pressure Distribution on the stator blades are presented. The experiments were carried out using piezoresistive miniature Pressure sensors, which are embedded into the Pressure and suction side surface of a single blade. The unsteady Pressure Distribution on the blade is analysed for the design point and an operating point near the stability limit. The investigations show that it is strongly influenced by both the incoming wakes and the potential flow field of the downstream rotor blade row. If a disturbance arrives the leading edge or the trailing edge of the blade the Pressure changes nearly simultaneously along the blade chord. Thus the unsteady profile Pressure Distribution is independent of the wake propagation within the blade passage. A phase shift of the reaction on Pressure and suction side is observed. The unsteady response of the boundary layer and the profile Pressure Distribution is compared. Based on the unsteady Pressure Distribution the unsteady Pressure forces of the blades are calculated and discussed.Copyright © 2003 by ASME
Eric Eils - One of the best experts on this subject based on the ideXlab platform.
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modified Pressure Distribution patterns in walking following reduction of plantar sensation
Journal of Biomechanics, 2002Co-Authors: Eric Eils, Stefan Nolte, Markus Tewes, L Thorwesten, Klaus Volker, D RosenbaumAbstract:The aim of the present study was to investigate the influence of reduced plantar sensation on Pressure Distribution patterns during gait of 40 healthy subjects (25.3+/-3.3 yr, 70.8+/-10.6 kg and 176.5+/-7.8 cm) with no history of sensory disorders. Plantar sensation in the subjects was reduced by using an ice immersion approach, and reduced sensitivity was tested with Semmes-Weinstein monofilaments. All subjects performed six trials of barefoot walking over a Pressure Distribution platform under normal as well as iced conditions. Plantar cutaneous sensation was significantly reduced after the cooling procedure (p<0.0001). Pressure Distribution analysis showed substantially modified plantar Pressure Distribution patterns during the roll-over process (ROP) under iced conditions. Analysis of peak Pressures revealed significant reductions under the toes and under the heel (p<0.001). The contact time and the relative impulse for the whole foot did not change significantly between the two conditions. For the different areas, a significant load shift from the heel and toes towards the central and lateral forefoot and the lateral midfoot was observed. The results indicate the strong influence of reduced afferent information of the sole of the foot on the ROP in walking.
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modified Pressure Distribution patterns in walking following reduction of plantar sensation
Journal of Biomechanics, 2002Co-Authors: Eric Eils, Stefan Nolte, Markus Tewes, L Thorwesten, Klaus Volker, D RosenbaumAbstract:Abstract The aim of the present study was to investigate the influence of reduced plantar sensation on Pressure Distribution patterns during gait of 40 healthy subjects (25.3±3.3 yr, 70.8±10.6 kg and 176.5±7.8 cm) with no history of sensory disorders. Plantar sensation in the subjects was reduced by using an ice immersion approach, and reduced sensitivity was tested with Semmes–Weinstein monofilaments. All subjects performed six trials of barefoot walking over a Pressure Distribution platform under normal as well as iced conditions. Plantar cutaneous sensation was significantly reduced after the cooling procedure ( p p
Xiaoping Chen - One of the best experts on this subject based on the ideXlab platform.
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static Pressure Distribution characteristics of powders stored in silos
Chemical Engineering Research & Design, 2020Co-Authors: Yangyang Chen, Cai Liang, Xin Wang, Xiaoping ChenAbstract:Abstract Static Pressure Distribution of the wall is essential to the optimal characteristics and discharge stability of the powder from products (bulk solids) in a silo. A Geocomp Shear Trac-II system was used to measure the flow properties of three different types of material, with an emphasis on the determining the best results in experiments using a special test silo with conical hopper dependent on the static Pressure Distribution of the silo wall. Experimental results shows that with an increase in height from the outlet, the Pressure in a hopper gradually increases, while the silo wall’s normal Pressure in the cylinder decreases. The maximum Pressure appears at the silo-hopper junction. Three different material types are chosen based on their ability to have a weakening effect on horizontal Pressure. With the increase in particle size, the horizontal Pressure in the silo junction remained constant. In the cylinder cross section, the larger the particle size, the higher the horizontal Pressure. Meanwhile, the vertical Pressure Distribution shows the opposite trend. With the increase in moisture content, horizontal Pressure increases, and the silo wall’s normal Pressure decreases. The influence of the moisture content on the vertical Pressure of the cone cross section is weak. In the cylinder cross section, the vertical Pressure increases with the increase in moisture content. The experimental data created in this study can serve as a reference to guide the design of new silos as well as the maintenance tasks of established silos. This paper can serve as a reference on what silo parts must be reinforced under higher Pressure during the unloading process.
Taketoshi Mori - One of the best experts on this subject based on the ideXlab platform.
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Pressure Distribution image based human motion tracking system using skeleton and surface integration model
International Conference on Robotics and Automation, 2001Co-Authors: Tatsuya Harada, Takahiro Sato, Taketoshi MoriAbstract:A lying person's motion tracking system by using a Pressure Distribution image and a full body model is proposed. The full body model consists of a skeleton and a surface model to cope with a variety of body shapes. BVH files are used as the skeleton model that describes a hierarchy of joints and links. Wavefront object files are used as the surface model that describes geometry of the surface. The bed has 210 Pressure sensors that are under the mattress. It can measure a Pressure Distribution image of a lying person. The lying person's motion is tracked by considering potential energy, momentum and a difference between the measured Pressure Distribution image and a Pressure Distribution image that is calculated by the full body model. Experimental results reveal that the realized system can track not only horizontal motions such as opening and closing legs but also vertical motions such as raising the upper body.
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Pressure Distribution image based human motion tracking system using skeleton and surface integration model
International Conference on Robotics and Automation, 2001Co-Authors: Tatsuya Harada, Tomomasa Sato, Taketoshi MoriAbstract:A lying person's motion tracking system by using a Pressure Distribution image and a full body model is proposed. The full body model consists of a skeleton and a surface model to cope with a variety of body shapes. BVH files are used as the skeleton model that describes a hierarchy of joints and links. Wavefront object files are used as the surface model that describes geometry of the surface. The bed has 210 Pressure sensors that are under the mattress. It can measure a Pressure Distribution image of a lying person. The lying person's motion is tracked by considering potential energy, momentum and a difference between the measured Pressure Distribution image and a Pressure Distribution image that is calculated by the full body model. Experimental results reveal that the realized system can track not only horizontal motions such as opening and closing legs but also vertical motions such as raising the upper body.
