نتایج جستجو برای: based topography

تعداد نتایج: 2955612  

Journal: :Remote Sensing 2015
Natalia Kolecka Jacek Kozak Dominik Kaim Monika Dobosz Christian Ginzler Achilleas Psomas

Secondary forest succession on abandoned agricultural land has played a significant role in land cover changes in Europe over the past several decades. However, it is difficult to quantify over large areas. In this paper, we present a conceptual framework for mapping forest succession patterns using vegetation structure information derived from LiDAR data supported by national topographic vecto...

2011
David P. Reichert Peggy Seriès Amos J. Storkey

In line with recent work exploring Deep Boltzmann Machines (DBMs) as models of cortical processing, we demonstrate the potential of DBMs as models of object-based attention, combining generative principles with attentional ones. We show: (1) How inference in DBMs can be related qualitatively to theories of attentional recurrent processing in the visual cortex; (2) that deepness and topographic ...

Journal: :international journal of nano dimension 0
s. sadegh hassani nanotechnology research center, research institute of petroleum industry (ripi), tehran, iran. z. sobat nanotechnology research center, research institute of petroleum industry (ripi), tehran, iran.

the scanning probe microscopes (spms) based lithographic techniques have been demonstrated as an extremely capable patterning tool. manipulating surfaces, creating atomic assembly, fabricating chemical patterns, imaging topography and characterizing various mechanical properties of materials in nanometer regime are enabled by this technique. in this paper, a qualified overview of diverse lithog...

2005
Alexandros Soumelidis Zoltán Fazekas Ferenc Schipp János Németh

The optical behaviour of the (human) cornea is often characterized with the Zernike-coefficients derived via the Zernike-transform of its optical power map. In this paper, a radial transform based on the Chebyshev-polynomials of the second kind is suggested for a surface-based, rather than an optical power map based representation of the cornea. This transform is well-suited for providing compa...

Journal: :Geophysical Research Letters 2009

S. Sadegh Hassani, Z. Sobat

The Scanning Probe Microscopes (SPMs) based lithographic techniques have been demonstrated as an extremely capable patterning tool. Manipulating surfaces, creating atomic assembly, fabricating chemical patterns, imaging topography and characterizing various mechanical properties of materials in nanometer regime are enabled by this technique. In this paper, a qualified overview of diverse lithog...

2016
Zohar Gvirtzman Claudio Faccenna Thorsten W. Becker

Article history: Received 12 January 2016 Received in revised form 26 May 2016 Accepted 27 May 2016 Available online 31 May 2016 A fundamental scientific question is, what controls the Earth's topography? Although the theoretical principles of isostasy, flexure, and dynamic topography arewidely discussed, the parameters needed to apply these principles are frequently not available. Isostatic fa...

Journal: :Optics express 2010
Joris J Snellenburg Boy Braaf Erik A Hermans Rob G L van der Heijde Victor Arni D P Sicam

A forward ray tracing (FRT) model is presented to determine the exact image projection in a general corneal topography system. Consequently, the skew ray error in Placido-based topography is demonstrated. A quantitative analysis comparing FRT-based algorithms and Placido-based algorithms in reconstructing the front surface of the cornea shows that arc step algorithms are more sensitive to noise...

2017
Benoit Rosa Jean-Yves Hascoet Pascal Mognol Benoit ROSA Jean-Yves HASCOET Pascal MOGNOL

Laser polishing is a finishing process based on melting material, with the objective of improving surface topography. Some operating parameters must be taken into consideration, such as laser power, feed rate, offset, and overlapping. Moreover, because of its dependence on the primary process, the initial topography has also an impact on the final result. This study describes a quadratic model,...

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