Results 11 to 20 of about 3,802,470 (275)

Semi-Automated Segmentation of Geometric Shapes from Point Clouds

open access: yesRemote Sensing, 2022
Building information models (BIM) in the civil industry are very popular nowadays. The basic information of these models is the 3D geometric model of a building structure.
Richard Honti   +2 more
doaj   +1 more source

Comparison of three tree‐ring sampling methods for trace metal analysis

open access: yesJournal of Environmental Engineering and Landscape Management, 2010
Tree‐ring growth analysis can provide information about tree development for forest inventory, environmental assessment, atmospheric and soil monitoring.
Edita Baltrėnaitė   +2 more
doaj   +1 more source

Steganograhy in Images by Using Intersecting Planes [PDF]

open access: yesEngineering and Technology Journal, 2011
Steganography is the art of hiding, and transmitting information using apparently innocent carrier without expose any suspicion. In this paper the proposed system is an implementation of image steganography techniques.
Esraa Jaffar Baker
doaj   +1 more source

METHODS TO DEVELOP A TOROIDAL SURFACE

open access: yesJournal of Industrial Design and Engineering Graphics, 2021
The paper work presents two practical methods to draw the development of a surface unable to be developed applying classical methods of Descriptive Geometry, the toroidal surface, frequently met in technical practice.
Vanda Ligia DANAILA   +1 more
doaj   +2 more sources

Optimization of starshades: focal plane versus pupil plane [PDF]

open access: yes, 2014
We search for the best possible transmission for an external occulter coronagraph that is dedicated to the direct observation of terrestrial exoplanets. We show that better observation conditions are obtained when the flux in the focal plane is minimized
Aime, Claude, Flamary, Rémi
core   +5 more sources

The Plane of the Kuiper Belt [PDF]

open access: yes, 2004
We present a robust method for measuring the effective plane of the Kuiper belt. The derived plane has an inclination with respect to the ecliptic of 1º.86 and an ascending node of 81º.6, with a 1 σ error in pole position of the plane of 0º.37. The plane
Brown, Michael E., Pan, Margaret
core   +1 more source

Plane Collineations [PDF]

open access: yesEdinburgh Mathematical Notes, 1960
If in a complex projective plane a point P, with coordinate vector x, corresponds to a point p*, with coordinate vector x*, under a non-singular collineation, thenx* = Axwhere A is a non-singular 3×3 matrix, the coordinates and the elements of A being complex numbers.
openaire   +1 more source

K-plane regression [PDF]

open access: yesInformation Sciences, 2015
In this paper, we present a novel algorithm for piecewise linear regression which can learn continuous as well as discontinuous piecewise linear functions. The main idea is to repeatedly partition the data and learn a liner model in in each partition.
Manwani, Naresh, Sastry, PS
openaire   +3 more sources

Experimental Parameter Identification and an Evaluation of the Impact of Tire Models on the Dynamics of Fixed-Wing Unmanned Aerial Vehicles

open access: yesAerospace
Because fixed-wing unmanned aerial vehicles (UAVs) require high-speed taxiing for takeoff and landing, the aircraft’s stability during taxiing is critical.
Hikaru Eguchi, Daisuke Nakata
doaj   +1 more source

Assessing the World Bank's influence on the good governance paradigm [PDF]

open access: yes
What does governance mean for the World Bank (WB) and how far does the organization influence the world community with this concept? The World Bank primarily focused on economic aspects of governance in the 1980s and progressively moved to its political ...
Gaoussou Diarra, Patrick Plane
core   +6 more sources

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