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  • accurate velocity
  • Designed for next-generation life science and healthcare applications, Juno ICs can profoundly improve the ability of design engineers to achieve greater motor efficiency, precise current control, and accurate velocity profiles. (prnewswire.com)
  • When facing the ground, the optical flow sensors can be used for accurate velocity calculation, and the position can be obtained by integration. (hindawi.com)
  • torque
  • WESTFORD, Mass. , Feb. 4, 2018 /PRNewswire/ -- SLAS2018 - Performance Motion Devices today announced Juno® Velocity and Torque Control Integrated Circuits (ICs), the industry's first family of compact ICs for velocity and torque control capable of four-quadrant current control. (prnewswire.com)
  • The unique combination of velocity and torque control with intelligent safety and performance monitoring delivers the ultra-efficient motor control that will help our customers improve development time and system safety. (prnewswire.com)
  • Attainment of high-performance motion/velocity control objectives for the Direct-Drive Rotary (DDR) torque motor should fully consider practical nonlinearities in controller design, such as dynamic friction. (hindawi.com)
  • However, designing a high-performance position/velocity tracking controller for the DDR torque motor [ 5 ] remains a challenge as multiple factors affecting control precision and dynamic nonlinear friction must be considered [ 6 ]. (hindawi.com)
  • trajectories
  • Fractional Brownian motions (FBMs) have been observed recently in the measured trajectories of individual molecules or small particles in the cytoplasm of living cells and in other dense composite systems, among others. (edu.pl)
  • mitral
  • Initially, investigators hypothesized that anterior motion is caused by a Venturi mechanism, whereby high velocity flow in the outflow tract lifts the mitral valve toward the septum. (onlinejacc.org)
  • More recent investigations indicate that drag, the pushing force of flow, is the dominant hydrodynamic force that initiates anterior motion, pushing the protruding mitral leaflet into the septum (6-9) . (onlinejacc.org)
  • analyze
  • Abstract: Motivated by applications in mathematical biology concerning randomlyalternating motion of micro-organisms, we analyze a generalized integratedtelegraph process. (duhnnae.com)
  • parameters
  • Mean values of TDI velocities and hemodynamic parameters were not significantly different between each pacing configuration. (ovid.com)
  • Static parameters are identified through a series of constant velocity experiments, while dynamic parameters are obtained through a presliding process. (hindawi.com)
  • uniform
  • Newton's first law, usually called the law of inertia states that: an object in a state of uniform motion tends to remain in that state of motion unless acted on by an outside force. (study.com)
  • CONCLUSIONS
  • CONCLUSIONS: The simultaneous assessment of CFV and wall motion was feasible in the majority of cases during dipyridamole stress echocardiography. (biomedsearch.com)
  • peak
  • demonstrated that during walking, the peak of the velocity tuning of the cells of the horizontal system is shifted toward higher velocities compared with resting flies. (jneurosci.org)
  • vector
  • Like coordinate velocity and unlike four-vector velocity, it resides in the three-dimensional slice of spacetime defined by the map frame. (wikipedia.org)
  • Soon after the publication in international conventions and journal articles, similar techniques based on these ideas have been implemented by the medical imaging industry, e.g. by Siemens under the designation "Vector Velocity Imaging" (2006). (wikipedia.org)
  • Considering that the translational motion velocity vector v has three degrees of freedom (one for each dimension) gives the average energy per degree of freedom equal to one third of that, i.e. 1/2kT. (wikipedia.org)
  • position
  • The scheme, which is based on extended Kalman filter, combines INS and optical flow information to estimate the velocity and position of MAV. (hindawi.com)
  • For example, optical flow sensor has been proved which can provide reliable velocity and position information when applied for robot localization or navigation [ 10 , 11 ]. (hindawi.com)
  • Since the Galileo devices are based on a see-saw motion the amplitude can be varied by the foot position: the further apart the feet the larger the amplitude. (wikipedia.org)
  • By convention, astronomers grouped stars into constellations and used them to track the motions of the planets and the inferred position of the Sun. The motion of the Sun against the background stars (and the horizon) was used to create calendars, which could be used to regulate agricultural practices. (wikipedia.org)
  • The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. (wikipedia.org)
  • Since the derivative of the position with respect to time gives the change in position (in metres) divided by the change in time (in seconds), velocity is measured in metres per second (m/s). (wikipedia.org)
  • tangential
  • Lobula plate tangential cells of flies lend themselves well to study this question because they are known to code for ego-motion based on optic-flow. (jneurosci.org)
  • We recorded the responses of the lobula plate tangential cell H1 to a visual pattern moving at different velocities under three different conditions: fixed flies before and after application of the octopamine agonist chlordimeform (CDM) and tethered flying flies. (jneurosci.org)
  • echocardiography
  • OBJECTIVES: This study was designed to assess the feasibility and clinical meaning of simultaneous assessment of wall motion and coronary flow velocity (CFV) reserve in the left anterior descending coronary artery (LAD) by transthoracic approach for detecting LAD stenosis during dipyridamole stress echocardiography. (biomedsearch.com)
  • determine
  • Various types of FBMs differ in a number of ways, including the strength, range and type of damping of the memory encoded in their definitions, but share several basic characteristics: distributions, non-ergodic properties, and scaling of the second moment, which makes it difficult to determine which type of Brownian motion (fractional or normal) the measured trajectory belongs to. (edu.pl)
  • Piazzi noted that this motion meant that it was probably one of the closest stars, and suggested it would be a prime candidate for an attempt to determine its distance though parallax measurements, along with two other possibilities, Delta Eridani and Mu Cassiopeiae. (wikipedia.org)
  • magnetic
  • The Larmor precession of the neutron spin in a preparation zone with a magnetic field before the sample encodes the individual velocities of neutrons in the beam into precession angles. (wikipedia.org)
  • space
  • The motion of the Sun through space provides a longer baseline that will increase the accuracy of parallax measurements, known as secular parallax. (wikipedia.org)
  • Isaac Newton
  • With his mathematical insight, Sir Isaac Newton formulated laws of motion that were not improved for nearly three hundred years. (wikipedia.org)
  • changes
  • Since the dynamic range of visual motion stimuli strongly depends on the speed at which an animal is moving, we investigated whether the visual system adapts to such changes in stimulus dynamics as induced by self-motion. (jneurosci.org)
  • Using extracellular recording, we investigated how the velocity tuning of H1, a well studied LPTC, changes during tethered flight. (jneurosci.org)
  • Changes were observed in the radial velocity motion of the star, indicating a gravitational influence from orbiting objects. (wikipedia.org)
  • This fact sometimes causes confusion about the "speed" of such static fields, which sometimes appear to change infinitely quickly when the changes in the field are mere artifacts of the motion of the observer, or of observation. (wikipedia.org)
  • Changes in the motion of the attracting body are transmitted by some sort of waves. (wikipedia.org)
  • If the scattering at the sample is not elastic but changes the neutron velocity, the rephasing will become incomplete and a loss of final polarization results, which depends on the distribution of differences in the time, which the neutrons need to fly through the symmetric first (coding) and second (decoding)precession zones. (wikipedia.org)
  • The velocity changes of the neutrons convey the physical information which is available by using NSE, i.e. (wikipedia.org)
  • For example, a car moving at a constant 20 kilometres per hour in a circular path has a constant speed, but does not have a constant velocity because its direction changes. (wikipedia.org)