نتایج جستجو برای: boundary hierarchies in spatial scales

تعداد نتایج: 17067975  

The vertical and rocking impedances of a rigid foundation resting on a semi-infinite transversely isotropic medium are obtained in the frequency domain. In the present approach, the contact pressure distribution on the soil foundation-interface is approximated by a linear combination of known pressure patterns. It is shown herein that the approximate solutions of spatial displacement distributi...

Journal: :Journal of Applied Meteorology 1982

Journal: :Proceedings of the ... AAAI Conference on Artificial Intelligence 2023

We present a novel hierarchical modeling method for layout representation learning, the core of design documents (e.g., user interface, poster, template). Existing works on often ignore element hierarchies, which is an important facet layouts, and mainly rely spatial bounding boxes feature extraction. This paper proposes Spatial-Structural Hierarchical Auto-Encoder (SSH-AE) that learns by treat...

2002
Oliver DeWolfe Steven B. Giddings

Warped compactifications with branes provide a new approach to the hierarchy problem and generate a diversity of four-dimensional thresholds. We investigate the relationships between these scales, which fall into two classes. Geometrical scales, such as thresholds for Kaluza-Klein, excited string, and black hole production, are generically determined soley by the spacetime geometry. Dynamical s...

Journal: :Perception & psychophysics 1994
S Grossberg

A neural network theory of three-dimensional (3-D) vision, called FACADE theory, is described. The theory proposes a solution of the classical figure-ground problem for biological vision. It does so by suggesting how boundary representations and surface representations are formed within a boundary contour system (BCS) and a feature contour system (FCS). The BCS and FCS interact reciprocally to ...

Casimir forces of massive ferrnionic Dirac fields are calculated for parallel plates geometry in spatial space with dimension d and imposing bag model boundary conditions. It is shown that in the range of ma>>l where m is mass of fields quanta and a is the separation distance of the plates, it is equal to massive bosonic fields Casimir force for each degree of freedom. We argue this equalit...

باقری, علیرضا , بنایان اول, محمد, شافنر, اورس, قربانی, رضا,

Considering the importance of plant diversity and to evaluate the effect of grazing pressure on species richness and structure of plant communities, this experiment was conducted at Golestan National Park and its surrounding areas in the north east of Iran. Sampling was conducted in intact and abandoned habitats and habitats under seasonal and heavy grazing, using Modified Whitaker Plot in 1, 1...

Journal: :اکو هیدرولوژی 0
مرضیه مکرم عضو هیئت علمی، دانشکدۀ کشاورزی و منابع طبیعی داراب، دانشگاه شیراز مجید حجتی کارشناسی ارشد سنجش از دور و سیستم اطلاعات جغرافیایی، دانشگاه تهران عبدالرسول زارعی عضو هیئت علمی، گروه مهندسی منابع طبیعی (مرتع و آبخیزداری)، دانشکدۀ کشاورزی، دانشگاه فسا

the objective of this study is evaluation of topographic wetness index (twi) using attraction model in northern of fars province. the first attraction model was used to enhance the spatial resolution of digital elevation model (dem). in this research to estimate of value of sub-pixels neighboring pixels, touching and quadrant neighboring models were used. after manufacturing output images for s...

In this paper, we investigate the existence of positive solutions for a second-order multipoint p-Laplacian impulsive boundary value problem on time scales. Using a new fixed point theorem in a cone, sufficient conditions for the existence of at least three positive solutions are established. An illustrative example is also presented.

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