نتایج جستجو برای: topographic properties
تعداد نتایج: 882177 فیلتر نتایج به سال:
Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation gradients and by studies using models, have been difficult to confirm empirically. While soil properties and topographic features are the two general physiographic factors controlling soil moisture on hillslopes, studies have shown conflicting results regarding which factor is more important. The rela...
Observations from the Gravity Recovery and Interior Laboratory (GRAIL) mission indicate a marked change in the gravitational signature of lunar impact structures at the morphological transition, with increasing diameter, from complex craters to peak-ring basins. At crater diameters larger than ~200 km, a central positive Bouguer anomaly is seen within the innermost peak ring, and an annular neg...
For sectioned biologic tissues, atomic force microscopy (AFM) topographic images alone hardly provide adequate information leading to revealing biological structures. We demonstrate that phase imaging in amplitude-modulation AFM is a powerful tool in mapping structures present on the surface of unfixed rat brains sections. The contrast in phase images is originated from the difference in mechan...
The exclusive ability of acoustic waves to probe the structural, mechanical and fluidic properties of foams may offer novel approaches to characterise the porous scaffolds employed in tissue engineering. Motivated by this we conduct a preliminary investigation into the acoustic properties of a typical biopolymer and the feasibility of acoustic propagation within a foam scaffold thereof. Focussi...
Quantification of topographic venting of boundary layer air to the free troposphere S. Henne, M. Furger, S. Nyeki , M. Steinbacher, B. Neininger, S. F. J. de Wekker , J. Dommen, N. Spichtinger, A. Stohl †, and A. S. H. Prévôt Paul Scherrer Institut, Villigen, Switzerland University of Essex, Colchester Essex, UK MetAir AG, Illnau, Switzerland Lehrstuhl für Bioklimatologie und Immissionsforschun...
A variant of the encoder architecture, where units at the input and output layers represent nodes on a graph. is applied to the task of mapping locations to sets of neighboring locations. The degree to which the resuIting internal (i.e. hidden unit) representations reflect global properties of the environment depends upon several parameters of the learning procedure. Architectural bottlenecks. ...
Some applications such as the autonomous navigation in natural terrain and the automation of map making process require highlevel scene descriptions as well as geometrical representation of the natural terrain environments. In this paper, we present methods for building high level terrain descriptions, referred to as topographic maps, by extracting terrain features like “peaks,” “pits,” “ridges...
Digital elevation models (dems) provide the basic information required to characterise the topographic attributes of terrain. The primary derived topographic parameters associated with DEMs are slope and aspect. Slope and aspect can be used to calculate other significant topographic parameters such as upslope area and topographic index. The topographic index, in turn, can be used by distributed...
Relationships between biophysical parameters and radiometric data have been tested and evaluated by several professionals using empirical and/or physical approaches. Remote sensing data collected from airborne or orbital platforms are, of course, influenced by different factors, such as illumination/observation geometry (data collection geometry), atmospheric effects, etc., rather than by targe...
The Okavango Delta is one of the world’s most fascinating wetland systems. The highly dynamic flooding forms the basis for a multitude of different ecosystems and plant and animal communities. Water scarcity and economical development lead to an increasing pressure on the ecosystem. A hydrological model is being developed to help making management decisions more sustainable by simulating possib...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید