Results 271 to 280 of about 132,352,308 (329)
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Anticipating adolescent growth vectors and velocities
American Journal of Orthodontics, 1972Abstract Growth potency can be evaluated by the hand-wrist radiograph, standards of height-weight values, and serial cephalometric observation radiographs. Experience adapts accepted predictive charts, such as those of Bayer and Bayley, to the norms of any ethnic population for the individual patients under treatment.
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Vehicle velocity estimation based on WSS/IMU with wheel slip recognition
Proceedings of the Institution of mechanical engineers. Part D, journal of automobile engineering, 2023Accurate velocity is of great significance to vehicle dynamic control, and vehicle velocity estimation based on wheel speed sensor (WSS) and inertial measurement unit (IMU) is more cost-effective than other sensors.
Liang-Xin Yuan +3 more
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Experimental and numerical study of radial velocity profiles in chemical stirred tanks
The Physics of Fluids, 2023Stirred tanks are widely used in various industrial processes for mixing, and reactions understanding the flow behavior and optimizing the impeller design is crucial for improving mixing efficiency and product quality.
J. Amponsah, Pius Ohene Darko
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Vector of Coordinates, Velocities and Accelerations
2015This chapter describes the how the vector of coordinates are defined in the formulation of spatial multibody systems. For this purpose, the translational motion is described in terms of Cartesian coordinates, while rotational motion is specified using the technique of Euler parameters. This approach avoids the computational difficulties associated with
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Examples of In Vivo Blood Vector Velocity Estimation
Ultrasound in Medicine & Biology, 2007In this paper, a case study of in-vivo blood vector velocity images of the carotid artery are presented. The transverse oscillation (TO) method for blood vector velocity estimation has been used to estimate the vector velocities. The carotid arteries of three healthy volunteers are scanned in-vivo at three different positions by experienced ...
Udesen, Jesper +3 more
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Multizone reproduction by matching the velocity vectors
The Journal of the Acoustical Society of America, 2023This paper proposes a velocity-based multizone reproduction method, which reproduces the velocity vectors throughout each listening zone. Velocity vectors are related to the localization of sound below 700 Hz. Previous work considered reproducing the velocity vectors at sweet spots or on the listening zone’s boundary, and usually involved measurements ...
Jiarui Wang +3 more
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Velocity Gradient Method of Lyapunov Vector Functions
Proceedings of the 2019 the 5th International Conference on e-Society, e-Learning and e-Technologies - ICSLT 2019, 2019In this paper, a new approach for constructing the Lyapunov function is considered. Lyapunov function is obtained as a vector function on the basis of the geometric interpretation of the Lyapunov's second method and, its antigradient is given by the velocity vector components (the right-hand side of the state equation) of the system. The stability area
Mamyrbek Beisenbi +3 more
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Application of vectors to relative velocity
International Journal of Mathematical Education in Science and Technology, 2004The topic ‘relative velocity’ has recently been introduced into the Cambridge Ordinary Level Additional Mathematics syllabus under the application of Vectors. In this note, the results of relative velocity and the ‘reduction to rest’ technique of teaching relative velocity are derived mathematically from vector algebra, in the hope of providing ...
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Examples of Vector Velocity Imaging
2011To measure blood flow velocity in vessels with conventional ultrasound, the velocity is estimated along the direction of the emitted ultrasound wave. It is therefore impossible to obtain accurate information on blood flow velocity and direction, when the angle between blood flow and ultrasound wave approaches 90°.
Peter M. Hansen +4 more
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Velocity vectors for features of sequential oceanographic images
IEEE Transactions on Geoscience and Remote Sensing, 1998This paper investigates a fundamental problem of determining the position, orientation, and velocity field of the Gulf Stream in time-varying imagery. The authors propose an approximation method to characterize the deformation of these image motions for the purpose of estimating the velocity field of these images.
E. C. Cho +3 more
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