| 词汇 | principal-direction |
| 释义 | BETA principal directioncollocation in Englishmeanings of principaland directionThese words are often used together. Click on the links below to explore the meanings. principal noun uk /ˈprɪn.sə.pəl/ us /ˈprɪn.sə.pəl/ US the person in charge of ... See more at principal direction noun uk /daɪˈrek.ʃən/ us /dɪˈrek.ʃən/ the position towards which someone or something moves ... See more at direction Examples of principal directionprincipal direction Where the curvature is convex in one principaldirection but concave in the other, like a saddle, the point is classified as anticlastic ('oppositely curved'). By determining the 'principaldirection' of the data, the 'dominating' information is extracted first. In this situation, the single principaldirection of the diffusion tensor is not an appropriate model for the local diffusion distribution. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At such points the normal curvature in all directions are equal, hence, both principal curvatures are equal, and every tangent vector is a "principaldirection". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Shelves of wood or concrete are fitted below the embrasures in the principaldirection. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A related notion is a curvature line, which is a curve always tangent to a principaldirection. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Principaldirection is the direction of the principal curvatures. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The trace can be seen as the sum of the components of compliance displacements along the principal directions. Umbilics can also be characterised by the pattern of the principaldirection vector field around the umbilic which typically form one of three configurations: star, lemon, and lemonstar (or monstar). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It models concrete considering concrete stresses in principal directions summed with reinforcing stresses assumed to be only axial. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each arm is aligned on the property so that each end faces one of the principal directions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the limit this curve will form an ellipse aligned with the principal directions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The eigenvalues correspond to the principal curvatures of the surface and the eigenvectors are the corresponding principal directions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A collection of orthonormal eigenvectors are called the principal directions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Alternatively, we can consider the case of proportional loading when the principal directions of strain remain constant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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