Results 221 to 230 of about 1,354,013 (264)
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Foot Center of Pressure and Medial Knee Osteoarthritis
Journal of the American Podiatric Medical Association, 2010Background: We sought to determine whether symptomatic medial knee osteoarthritis is associated with aberrant loading across the foot during gait. Methods: Twenty-five individuals with medial knee osteoarthritis were compared with 25 ...
Roy H, Lidtke +3 more
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Management of Pressure Sores in a Specialty Center
Plastic and Reconstructive Surgery, 1979We report a study on the surgical management of 145 pressure sores in 115 patients treated in a spinal cord injury center. There is a definite trend toward better education of these patients, who do not develop their first pressure sores until years following the injury.
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Microcantilevers Bend to the Pressure of Clustered Redox Centers
Langmuir, 2014The redox-activated deflection of microcantilevers has attracted interest for nanoactuation and chemical sensing. Microcantilever sensors are devices that transduce (bio)chemical reactions into a quantifiable nanomechanical motion via surface stress changes. Despite promising applications in analytical science, poor signal-to-noise ratios and a limited
Eric R, Dionne +2 more
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Center-of-Pressure Gates for Irrigation
Applied Engineering in Agriculture, 1991Center-of-pressure gates, sometimes referred to as pressure gates, were developed and field tested to semi-automate basin and border irrigation systems. The gates use the principle of hydrostatic pressure distribution for operation and are constructed with a pivot shaft located at approximately one-third the water depth above the bottom of the gate ...
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On the center of pressure of conical bodies
Fluid Dynamics, 1980The profiles of conical bodies for which the position of the center of pressure in a supersonic flow with symmetry plane does not depend on the flow parameters are considered. The theoretical investigation of the aerodynamic characteristics of circular cones [1] has shown that their center of pressure does not depend on the angle of attack α when the ...
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Aerodynamic Center and Center of Pressure of an Airfoil at Supersonic Speeds
Journal of the Aeronautical Sciences, 1947IT is WELL KNOWN that according to the Ackeret (or linearized) theory for supersonic flow both the aerodynamic center and the center of pressure of a symmetrical airfoil are always at the midpoint of the chord. It appears, however, that no general formulas have as yet been given for determining the aerodynamic center and center of pressure of a ...
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Ambulatory Center of Mass Prediction Using Body Accelerations and Center of Foot Pressure
IEEE Transactions on Biomedical Engineering, 2008The center of body mass (COM), center of foot pressure (COP), and body segment acceleration signals are commonly used to indicate movement performance and stability during standing activities and walking. For balance maintenance and restoration, the human brain is capable of estimating and predicting the COM even in the absence of visual or vestibular ...
Aimee L. Betker +2 more
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Effect of Center of Mass Immobilization on Center of Pressure Displacement in Single and Dual-Task
Journal of Motor Behavior, 2021Recent research showed that artificially immobilizing the center of mass (COM) of participants in a standing position increased the center of pressure (COP) variability. This increase has been interpreted as an exploratory behavior. The objectives of this study are to investigate if this exploratory behavior is (1) reflected in other COP variables and (
Lucas, Michaud +2 more
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The pressure distribution of hollow cathode centered negative pressure arc
Journal of Manufacturing Processes, 2016Abstract As a newly modified welding heat source, hollow cathode centered negative pressure arc (HCCNPA) has obvious changes in arc morphology and pressure distribution in comparison with traditional gas tungsten arc (GTA). To better understand of these, in this paper the arc behavior was monitored by using a high-speed image processing system.
Shujun Chen +3 more
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The Use of Pressure Plates for Static Center of Pressure Analysis in Horses
Journal of Equine Veterinary Science, 2015Abstract Stabilographic analysis allows the quantification of balance by tracking center of pressure (COP) displacements in the horizontal plane during quiet standing. The aim of this study was to use pressure plates to measure descriptive stabilographic variables in Puro Sangue Lusitano horses.
Maria Gomes-Costa +6 more
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