نتایج جستجو برای: geometry effects topography

تعداد نتایج: 1700093  

2011
M. D. Hicks B. J. Buratti J. Nettles M. Staid J. Sunshine C. M. Pieters S. Besse J. Boardman

[1] Changes in observed photometric intensity on a planetary surface are caused by variations in local viewing geometry defined by the radiance incidence, emission, and solar phase angle coupled with a wavelength‐dependent surface phase function f (a, l) which is specific for a given terrain. In this paper we provide preliminary empirical models, based on data acquired inflight, which enable th...

2010
Marc Rodriguez-Cassola Pau Prats Gerhard Krieger Alberto Moreira

Due to the lack of an appropriate symmetry in the acquisition geometry, generalised bistatic SAR cannot benefit from the two main properties of low-to-moderate resolution monostatic SAR: azimuth-invariance and topography-insensitivity. Precise accommodation of azimuth-variance and topography is a real challenge for efficent algorithms working in the Fourier-domain, but can be quite naturally ha...

2014
Karina Kulangara Jennifer Yang Malathi Chellappan Yong Yang Kam W. Leong

Mesenchymal stem/stromal cells respond to physical cues present in their microenvironment such as substrate elasticity, geometry, or topography with respect to morphology, proliferation, and differentiation. Although studies have demonstrated the role of focal adhesions in topography-mediated changes of gene expression, information linking substrate topography to the nucleus remains scarce. Her...

2004
G. B. Crosta

The capability of evaluating and managing rockfall related risks is largely based on numerical modelling. Nevertheless, the reliability and accuracy of rockfall models is greatly affected by the strong uncertainty and spatial variability which characterise all the relevant parameters. In particular, 3D effects related to the variability of slope geometry and micro-topography play a major role i...

Journal: :Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 2012

ژورنال: آبخیزداری ایران 2019
, , soufi, majid, yasrebi, banafshe,

Gully erosion is one of the important forms of soil degradation especially in semi-arid areas. Gullies are occupying 13 percent of Ilam Province area. This research focused on studying the, topographic threshold of gullies, dominant process of gully initiation and development as well, in agricultural and rangeland land uses. Ilam province with 2 million hac area is located in western Iran. Ilam...

2016
Bijan Fallah Abbas Ali Saberi Sahar Sodoudi

Scale invariance property in the global geometry of Earth may lead to a coupled interactive behaviour between various components of the climate system. One of the most interesting correlations exists between spatial statistics of the global topography and the temperature on Earth. Here we show that the power-law behaviour observed in the Earth topography via different approaches, resembles a sc...

Journal: :Remote Sensing 2015
Alijafar Mousivand Wout Verhoef Massimo Menenti Ben G. H. Gorte

Topography affects the fraction of direct and diffuse radiation received on a pixel and changes the sun–target–sensor geometry, resulting in variations in the observed radiance. Retrieval of surface–atmosphere properties from top of atmosphere radiance may need to account for topographic effects. This study investigates how such effects can be taken into account for top of atmosphere radiance m...

Journal: :MorphoMuseuM 2021

This contribution contains 3D models of upper molar rows house mice (Mus musculus domesticus). The erupted parts the right row and first are presented for specimens belonging to four groups: wild-trapped mice, wild-derived lab offspring, a typical laboratory strain (Swiss) hybrids between Swiss mice. These analyzed in following publication: Savriama et al 2021: Wild versus mice: Effects age, di...

Journal: :Electr. Notes Theor. Comput. Sci. 2001
Katharina Lange Rahul Ray Michiel H. M. Smid Ulrich Wendt

We consider the problem of computing the largest region in a terrain that is approximately contained in some two-dimensional plane. We reduce this problem to the following one. Given an embedding of a degree-3 graph G on the unit sphere S2, whose vertices are weighted, compute a connected subgraph of maximum weight that is contained in some spherical disk of a fixed radius. We given an algorith...

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