Results 121 to 130 of about 1,253,234 (169)
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Three-dimensional sonoembriology
Ultrasound in obstetrics & gynecology, 2001Three-dimensional ...
Kurjak, Asim +2 more
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Three-dimensional echoventriculography
American Heart Journal, 1983A method of generating a three-dimensional image of the human left ventricle by computer techniques is described. The volume of each image was estimated by a modification of Simpson's rule. The method was applied to nine suitable patients and estimations of end-diastolic and end-systolic volumes were compared to volumes determined by cineangiography ...
J V, Nixon +3 more
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Three-Dimensional Photoelasticity
Journal of Applied Physics, 1951The classical Sommerfeld-Runge method for deriving the laws of geometric optics in isotropic inhomogeneous media from Maxwell's equations is applied to problems in ``weakly'' anisotropic and inhomogeneous media. This leads to a generalized Hamilton-Jacobi partial differential equation for the phases of the two waves (eikonals) which can propagate with ...
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2015
This chapter deals with perhaps the most difficult task of conceptualising 3D form and space. First, I examine the constituent parts of 3D form, and then I unfold what a person registers in sequence when entering a space. Light defines how a space is seen, by reflecting off surfaces and form. Design is about expression of identity and 3D form will play
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This chapter deals with perhaps the most difficult task of conceptualising 3D form and space. First, I examine the constituent parts of 3D form, and then I unfold what a person registers in sequence when entering a space. Light defines how a space is seen, by reflecting off surfaces and form. Design is about expression of identity and 3D form will play
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Three-Dimensional Moment Invariants
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1980Recognition of three-dimensional objects independent of size, position, and orientation is an important and difficult problem of scene analysis. The use of three-dimensional moment invariants is proposed as a solution. The generalization of the results of two-dimensional moment invariants which had linked two-dimensional moments to binary quantics is ...
Sadjadi, Firooz A., Hall, Ernest L.
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Three-dimensional modes of three-dimensional microlasers
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017On-chip photonic devices are often considered in the framework of a two-dimensional (2D) approximation, with light propagating within a defined horizontal plane. Nethertheless, the finite cavity thickness plays an important role in understanding relevant three-dimensional (3D) effects. For instance, the light propagating in the device is diffracted and
N. Sobeshchuk +7 more
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“Three-Dimensional” ultramicrotomy
Journal of Ultrastructure Research, 1965A method is described for the routine production of ultrathin sections, cut alternately at right angles to each other. Two separate ribbons of sections are obtained, each being the right-angled complement of the other, and they share a common side along their entire length.
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Veterinary Record, 2015
After her final year studying veterinary medicine at the Royal Veterinary College (RVC) and before starting an internship, Vicky Simons took on the job of creating a life‐size equine anatomical model ‘anatohorse’ (also known as Geoff)
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After her final year studying veterinary medicine at the Royal Veterinary College (RVC) and before starting an internship, Vicky Simons took on the job of creating a life‐size equine anatomical model ‘anatohorse’ (also known as Geoff)
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Three-dimensional echocardiography.
Minerva cardioangiologica, 2005Three-dimensional (3-D) echocardiography has been an important research goal ever since the introduction of two-dimensional (2-D) echocardiography. Most approaches towards 3-D echocardiography were off-line and based on the sequential rotational scanning and acquisition of multiple cross-sectional images together with external or internal reference ...
van den Bosch, Annemien +2 more
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Three dimensional arm trajectories
Biological Cybernetics, 1983Planar arm trajectories are characterized by a segmentation of the hand velocity profile and by a coupling between shape and speed. The question addressed in this paper is whether such coupling, observed in two dimensions, still holds in three dimensions.
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