Center of Mass (COM)
On-Orbit Center Of Mass Relocation System For A 3U Cubesat
... its CoM located at distinct positions, and its relationship with the power consumption of the attitude ...the center of ...geometric center of the surface of the spacecraft exposed to the atmospheric ...
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Ground reaction forces intersect above the center of mass even when walking down visible and camouflaged curbs
... A mechanical strategy to stabilize the body while walking is to direct the forces to a point above the center of mass of the whole body (COM). Based on this, in the virtual pivot concept the body is ...
9
Improving the Spacecraft Center of Mass Stabilization Accuracy
... spacecraft center of mass velocity in the normal and lateral directions (the drift velocity), and the spacecraft center of mass stabilization system is to provide center of mass ...
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Center of Mass-Based Adaptive Fast Block Motion Estimation
... This work proposes a novel adaptive fast block motion estimation algorithm based on center of mass (CEM), bi- nary transform, subsampling, and horizontal/vertical pro- jection techniques. A preliminary MV ...
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Comparing joint kinematics and center of mass acceleration as feedback for control of standing balance by functional neuromuscular stimulation
... standing COM position and COM acceleration, ...compute COM kinematics serving as regression model outputs and indica- tors of global system ...inputs. COM position and acceleration could be ...
11
The effects of prosthetic foot type and visual alteration on postural steadiness in below-knee amputees
... The ability to maintain postural stability is the foundation of achieving independent standing and walking [1]. It is a complex task that integrates somatosensory (propriocep- tive, cutaneous and joint), visual and ...
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A ZMP Feedback Control for Biped Balance and its Application to In-Place Lateral Stepping Motion
... the center of mass (CoM) of the body, are initially planned to force the computed ZMP based on the planned motion to stay inside the foot ...the CoM of the body, are then controlled in a ...
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Contribution of hip joint proprioception to static and dynamic balance in cerebral palsy: a case control study
... disability. Center of mass (COM) and center or pressure (COP) velocity, excursion, and differences between COM and COP in AP and ML directions were computed from static standing trials ...
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The role of elastic energy storage and recovery in downhill and uphill running
... Level running is often likened to a bouncing ball (Cavagna et al., 1964; Margaria, 1976) or a resilient spring–mass system (Blickhan, 1989; McMahon and Cheng, 1990). These analogies accurately describe the ...
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Collaborative robotic biomechanical interactions and gait adjustments in young, non-impaired individuals
... of center of mass in the forward ...a com- fortable speed was also observed in a previous study ...the center of mass displacement ...to center of mass, and it was ...
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Development and evaluation of an accelerometry system based on inverted pendulum to measure and analyze human balance
... In accelerometry based body sway analysis, the signals from an inertial measurement unit (accelerometer or gyroscope) that is placed on the body's center of mass (COM) position are processed to ...
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Partially Invariant System for Spacecraft Center of Mass Motion Stabilization
... Except improvement of the navigational accuracy, reduction of spacecraft stabilization cross errors in the active phase, it also results in lower total characteristic velocity of corrective impulses, and, consequently, ...
7
Six degree of freedom analysis of hip, knee, ankle and foot provides updated understanding of biomechanical work during human walking
... Joint work estimates, based on inverse dynamics, fail to capture negative work performed by passive soft tissue (DeVita et al., 2007; Zelik and Kuo, 2010) and shoe deformations (Sasaki et al., 2009; Shorten, 1993). For ...
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Dynamics in Polymer Nanocomposites Containing Fixed and Mobile Nanoparticles
... The center of mass (COM) diffusion of polymers is also partly responsible for determining whether a thermodynamically unstable polymer/NP system undergoes aggregation during processing/use or remains ...
152
The Contribution of the Gravitational Propagation Delay to Orbital and Center of Mass Motions
... Equation 2.19b can be used to express the time derivatives of the orbital radius in terms of derivatives with respect to the angle θ to lowest order in small parameters.. This is standar[r] ...
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Biomechanics of quadrupedal walking: how do four legged animals achieve inverted pendulum like movements?
... equal mass distribution and footfalls evenly spaced through a stride, we found that the center of mass of a walking dog does not maintain a flat trajectory because (1) the fore limbs lag the hind ...
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Analysis and Design of Regular and Irregular Buildings
... same mass, the irregularity being caused by shifting of center of ...of center of mass and center of stiffness, torsion induced in the building, forces acting on column and changes ...
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Tabletop Testbed for Attitude Determination and Control of Nanosatellites
... the distance between the center of mass and the center of rotation of the air bearing table... Oscillation decay in the roll axis.[r] ...
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Work minimization accounts for footfall phasing in slow quadrupedal gaits
... the center of mass velocity is a near-maxi- mal downward, forward and lateral, before being opposed by an impulse orientated upward, back- ward and medially: much of the kinetic energy of the body cannot be ...
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Effects of Torsion Lateral Stability of Building Structure
... non-coincident center of mass and center of stiffness where center of mass is the point at which all the mass of a body may be considered to be concentrated in analyzing its ...
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